Issue #2845842: In version 7.x-1.3, helper functions were moved to gp.helpers.inc. This introduced a bug in the install process which caused a WSOD because the helper file was not yet loaded.

- Require PHP 5.4 or higher in the .info file since the "google-places" library uses short array syntax.
- Removed "@" from including the class path. When loading the library on PHP <= 5.3, a PHP error was thrown (due to short array syntax) but the "@" resulted in a WSOD.
- Simplified the code that checks for the API key and the class path. Made the error messages consistent .
- Updated release URL of the "google-places" library in README.txt since 1.2 is no different than 1.0.
- Fix warning about '#prefix' not set on field ui cardinality.
- Removed README.txt link on the config form since some hosts block TXT files, and the site admin can just view the file in the code.
- Changes to hook_requirements(): added missing title, separate checks for library and empty API key.

README.txt -- Notation about known issues.

Issue #2902415: Added a "Set Title/Label" checkbox to the Field Instance Settings form to optionally replace the title of the entity.
Disable the Title/Label field on an entity when the "Set Title/Label" option is checked.
Added a warning to the Field UI edit form about only allowing the GP field to be a single value.

Issue #2902415: $entity->title was being set to the place name, but that property does not exist on all entities. Instead check for the 'label' property of the entity.
Changed all instances of time() to REQUEST_TIME (https://www.drupal.org/update/modules/6/7#time).
Change settings form label to "Place types" for clarity.

gp.module -- Differentiated the errors when failing to load the class. Added more correct backslashes to stringified namespace.

Overhaul of the module to fix installation and operational issues. Made all add-on fields optional to reduce the overhead of installing this module.

* Improved installation instructions in README.txt.
* Installation requirements to make sure the library is installed, and hook_uninstall() to delete variables.
* Removed require_once() statement in gp.module because it was causing critical errors if the library doesn't yet exist.
* Moved library loading into a universal function. Added proper namespacing when instantiating the class.
* Added property_type key in hook_field_info() to be compatible with Entity API's entity_metadata_wrapper().
* All add-on fields for storing GP data are now optional. (Still need to validate all fields though.) Check field instances before adding data.
* Added default entity language when one doesn't exist.
* Cleaned up the parsing of addressfield data.
* Added library checking to configuration form.

Overhaul of the module to fix installation and operational issues. Made all add-on fields optional to reduce the overhead of installing this module.

* Improved installation instructions in README.txt.
* Installation requirements to make sure the library is installed, and hook_uninstall() to delete variables.
* Removed require_once() statement in gp.module because it was causing critical errors if the library doesn't yet exist.
* Moved library loading into a universal function. Added proper namespacing when instantiating the class.
* Added property_type key in hook_field_info() to be compatible with Entity API's entity_metadata_wrapper().
* All add-on fields for storing GP data are now optional. (Still need to validate all fields though.) Check field instances before adding data.
* Added default entity language when one doesn't exist.
* Cleaned up the parsing of addressfield data.
* Added library checking to configuration form.

Add gp_cron(), gp_cron_queue_info() and gp_cache_queue_worker_time(). Handle address special cases with Austria and Germany.