Fixed Best practice and unused variables

https://www.drupal.org/docs/7/site-building-best-practices/best-practices

FILE: ...ites/all/modules/custom_breadcrumbs/custom_breadcrumbs.admin.inc
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FOUND 0 ERRORS AND 3 WARNINGS AFFECTING 3 LINES
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 404 | WARNING | All variables defined by your module must be
     |         | prefixed with your module's name to avoid name
     |         | collisions with others. Expected start with
     |         | "custom_breadcrumbs" but found
     |         | "custom_breadcrumb_home"
 740 | WARNING | Unused variable $options.
 766 | WARNING | Unused variable $names.
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FILE: ...l/sites/all/modules/custom_breadcrumbs/custom_breadcrumbs.module
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FOUND 0 ERRORS AND 7 WARNINGS AFFECTING 7 LINES
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  360 | WARNING | Unused variable $title.
  721 | WARNING | Unused variable $args.
  722 | WARNING | Unused variable $cond.
  725 | WARNING | Unused variable $p.
  774 | WARNING | Unused variable $key.
  829 | WARNING | Unused variable $mlid.
 1184 | WARNING | Unused variable $key.
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FILE: ...om_breadcrumbs_identifiers/custom_breadcrumbs_identifiers.module
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FOUND 0 ERRORS AND 2 WARNINGS AFFECTING 2 LINES
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  99 | WARNING | There must be no blank line following an inline
     |         | comment
 200 | WARNING | All variables defined by your module must be
     |         | prefixed with your module's name to avoid name
     |         | collisions with others. Expected start with
     |         | "custom_breadcrumbs_identifiers" but found
     |         | "custom_breadcrumbs_none_span"
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FILE: ...rumbs/custom_breadcrumbs_panels/custom_breadcrumbs_panels.module
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FOUND 0 ERRORS AND 11 WARNINGS AFFECTING 9 LINES
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 116 | WARNING | Variable $handler is undefined.
 120 | WARNING | Variable $handler is undefined.
 126 | WARNING | Variable $contexts is undefined.
 131 | WARNING | Variable $handler is undefined.
 132 | WARNING | Variable $handler is undefined.
 146 | WARNING | Variable $task is undefined.
 146 | WARNING | Variable $task is undefined.
 148 | WARNING | Variable $contexts is undefined.
 158 | WARNING | Variable $task is undefined.
 158 | WARNING | Variable $task is undefined.
 201 | WARNING | All variables defined by your module must be
     |         | prefixed with your module's name to avoid name
     |         | collisions with others. Expected start with
     |         | "custom_breadcrumbs_panels" but found
     |         | "custom_breadcrumbs_taxonomy_panels"
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FILE: ...crumbs/custom_breadcrumbs_paths/custom_breadcrumbs_paths.install
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FOUND 3 ERRORS AND 2 WARNINGS AFFECTING 5 LINES
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 14 | ERROR   | Do not use t() or st() in installation phase hooks,
    |         | use $t = get_t() to retrieve the appropriate
    |         | localization function name
 31 | WARNING | Unused variable $id.
 32 | WARNING | Messages are user facing text and must run through
    |         | t() for translation
 37 | ERROR   | Do not use t() or st() in installation phase hooks,
    |         | use $t = get_t() to retrieve the appropriate
    |         | localization function name
 40 | ERROR   | Do not use t() or st() in installation phase hooks,
    |         | use $t = get_t() to retrieve the appropriate
    |         | localization function name
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FILE: ...dcrumbs/custom_breadcrumbs_paths/custom_breadcrumbs_paths.module
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FOUND 0 ERRORS AND 3 WARNINGS AFFECTING 1 LINE
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 137 | WARNING | Variable $max is undefined.
 137 | WARNING | Variable $max is undefined.
 137 | WARNING | Variable $max is undefined.
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FILE: ...umbs/custom_breadcrumbs_taxonomy/custom_breadcrumbs_taxonomy.inc
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FOUND 0 ERRORS AND 5 WARNINGS AFFECTING 3 LINES
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  18 | WARNING | Unused variable $v_alias.
 187 | WARNING | Variable $vid is undefined.
 203 | WARNING | Variable $lweight is undefined.
 203 | WARNING | Variable $lweight is undefined.
 203 | WARNING | Variable $lweight is undefined.
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FILE: .../custom_breadcrumbs_taxonomy/custom_breadcrumbs_taxonomy.install
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FOUND 3 ERRORS AND 3 WARNINGS AFFECTING 6 LINES
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 15 | WARNING | Messages are user facing text and must run through
    |         | t() for translation
 25 | WARNING | Unused variable $id.
 42 | ERROR   | Do not use t() or st() in installation phase hooks,
    |         | use $t = get_t() to retrieve the appropriate
    |         | localization function name
 54 | ERROR   | Do not use t() or st() in installation phase hooks,
    |         | use $t = get_t() to retrieve the appropriate
    |         | localization function name
 57 | ERROR   | Do not use t() or st() in installation phase hooks,
    |         | use $t = get_t() to retrieve the appropriate
    |         | localization function name
 60 | WARNING | Messages are user facing text and must run through
    |         | t() for translation
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FILE: ...s/custom_breadcrumbs_taxonomy/custom_breadcrumbs_taxonomy.module
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FOUND 0 ERRORS AND 4 WARNINGS AFFECTING 2 LINES
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 198 | WARNING | Variable $max is undefined.
 198 | WARNING | Variable $max is undefined.
 198 | WARNING | Variable $max is undefined.
 545 | WARNING | There must be no blank line following an inline
     |         | comment
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FILE: ...crumbs/custom_breadcrumbs_views/custom_breadcrumbs_views.install
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FOUND 2 ERRORS AND 3 WARNINGS AFFECTING 5 LINES
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 13 | WARNING | Messages are user facing text and must run through
    |         | t() for translation
 31 | WARNING | Unused variable $id.
 32 | WARNING | Messages are user facing text and must run through
    |         | t() for translation
 37 | ERROR   | Do not use t() or st() in installation phase hooks,
    |         | use $t = get_t() to retrieve the appropriate
    |         | localization function name
 40 | ERROR   | Do not use t() or st() in installation phase hooks,
    |         | use $t = get_t() to retrieve the appropriate
    |         | localization function name
----------------------------------------------------------------------


FILE: ...dcrumbs/custom_breadcrumbs_views/custom_breadcrumbs_views.module
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FOUND 0 ERRORS AND 3 WARNINGS AFFECTING 1 LINE
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 97 | WARNING | Variable $max is undefined.
 97 | WARNING | Variable $max is undefined.
 97 | WARNING | Variable $max is undefined.
----------------------------------------------------------------------