Merge branch 'release/v2.7.6' into develop
Fixing a bug with sub editing.
Fixes #269.
Fixed an invalid argument error when viewing a the submissions table

Warning: Invalid argument supplied for foreach() in (...)/wp-content/plugins/ninja-forms/classes/subs-cpt.php on line 274
Fixed a bug with some servers caused by calling the set_time_limit() function.
Working on adding a filter to submission permissions.
Added a new filter to the admin menu capabilities. Deprecated older versions.
Fixed a bug in the sequential number short code.
Added a new filter to the admin menu capabilities. Deprecated older versions.
Fixed a bug with some servers caused by calling the set_time_limit() function.
Merge branch 'develop' of https://github.com/wpninjas/ninja-forms into develop

Conflicts:
	classes/subs-cpt.php
Fixes #287.
Rich Text Editors in field settings should now render properly upon insertion. Fixes #282.
Updating to version 2.7.7.
Merge branch 'release/v2.7.7'