API: Improved get_field_object to better handle values with no field reference

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Core: Improved save_post action be comparing the post_id. This will prevent the acf/save_post action from firing multiple times if you are inserting a new post during the save

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Core: Improved the acf/save_post action by only running the update_value filters once, caching all the DB calls and then using the cache to save the 2nd post (revision, then post)

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Merge pull request #84 from maximebj/master

French translation fix
Updates to field group JS

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Language: Added Russian translation - Thanks to Alex Torscho

Signed-off-by: Elliot Condon <e@elliotcondon.com>
grammer

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Merge branch 'master' of https://github.com/elliotcondon/acf
Fixed UI bug on add-ons page

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Core: Improved cache handling

Signed-off-by: Elliot Condon <e@elliotcondon.com>
CSS: Fixed required text colour bug

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Options Page: Fixed load_value not loading default value

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Removed redundant JS AJAX arg

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Image / File field: Updated JS to add multiple items to the correct sub field

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Image & File fields: Improved JS to better handle library option

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Unterminated function fix (reported in #58 by @iceicetimmy)
Merge pull request #87 from om4james/jsfixes

Unterminated function fix
IE8 javascript error fix. Fixes #88.

IE8 doesn't seem to like options.class.
Renaming it to options.classname fixes the issue.
Unterminated function fixes

I haven't noticed the missing semicolons causing any actual issues, but best to include them to ensure maximum cross browser compatibility.
Readme/changelog update.