flag 7.x-3.7

Changes since 7.x-3.6:

• #2579905 by Blanca.Esqueda: Fixed flag access for new comments in comment form with 'comment_own' setting.
• #1870300 by blairski, stefan.r: Added workaround for core bug which can cause upgrade from Flag 2.x to Flag 3.x to fail.
• #2482319 by joachim, stevepurkiss: Fixed EntityFieldQuery on flaggings crashes when there are bundle and field conditions but no property conditions.
• #1718926 by joachim: Fixed missing calls to Field Attach API.
• #1133956 by joachim, amateescu, stevepurkiss: Added special handling to improve efficiency when displaying lists of flaggable comments.
• #2476499 by joachim, martin107, socketwench: Added detail to the documentation of the flag count API.
• #2416121 by bobrov1989, joachim: Fixed docs for flag_get_flags().
• #2208759 by cs_shadow: Fixed flag_get_user_flag_counts() not documenting that it doesn't work for global flags.
• #2308543 by vegantriathlete: Fixed flag bundles don't update when a bundle machine name changes.
• #2197041 by Pere Orga, rlmumford, stefan.r: Fixed PHP notice in flag_token_info() when some flag types are not entity types.
• #2313119 by joachim: Fixed function signature for hook_flag_link() in flag.api.php.
• #2379839 by joachim: Fixed hook_flag_access_multiple() docs missing details on what to return when there is no data.
• #2386187 by knoboid: Added flagging ID to Views data.
• #1902006 by joachim: Fixed access to (un)flagging pages is controlled by 'access content' permission, rather than checking access to the flag.
• #2245609 by cs_shadow: Added type hinting to function documentation parameters and returns.
• #2338519 by JulienD: Removed useless files[] directives from flag_action.info file.
• #1291170 by roynilanjan: Added transaction to flagging operation.
• by joachim: Added to inline comment in flag_flag::get_flagging_record().
• #2466539 by joekers: Fixed obsolete table field descriptions in hook_schema().