Bug fixes

Changes since 8.x-1.0-alpha1:

• #2999548 by gnuget: Module does not exist error for unused themes

• Rename module from Alternate hreflang to Hreflang
• Remove unused variables
• Workaround a core bug in Comment module: #2980322: Remove page=0 query parameter

Minor bugfix release

Resolves:

• Issue #3010063: Messenger in LoginController not initialized by webflo: Messenger in LoginController not initialized

Support added for display fields.

Fixed typo in dependency breaking composer install.

Issue #2891194 by jwilson3, IJsbrandy: Illegal offset type in Drupal\language\ConfigurableLanguageManager->getFallbackCandidates()
Issue #3008607 by dalin: Allow markers to include alt text
Issue #3006497 by obiwankenobi: Disable zoom using mouse wheel