Possibility to define an admin bar icon

See also:
https://github.com/ReduxFramework/redux-framework/issues/1530
Removed: page_icon

Since WP >= 3.9 not usable, because ".icon32" is always set to "display:
none".
Merge pull request #1531 from Ninos/master

Possibility to define an admin bar icon
#1529, #1532, #1530
Signed-off-by:KProvance <kevin.provance@gmail.com>
welcome page code
Signed-off-by:KProvance <kevin.provance@gmail.com>
welcome page code
Signed-off-by:KProvance <kevin.provance@gmail.com>
welcome page code
Signed-off-by:KProvance <kevin.provance@gmail.com>
welcome page code
Signed-off-by:KProvance <kevin.provance@gmail.com>
Small changes.
#1537
Signed-off-by:KProvance <kevin.provance@gmail.com>
Added .editorconfig
Merge pull request #1544 from SiR-DanieL/master

Added .editorconfig
#1543
Signed-off-by:KProvance <kevin.provance@gmail.com>
Merge origin/master
#1543
Signed-off-by:KProvance <kevin.provance@gmail.com>
3.3.6 Release.
Fix for issue #1560.
qTip Conflict version.
qTip fix.
whoops
Signed-off-by:KProvance <kevin.provance@gmail.com>