3.1.38 Bug fix

Bug fix

• Fixed bug - active/disable buttons after change mode
• Fixed bug - after select all if on page was invisible element, selection was collapsed
• Fixed bug in iframe mode after enter button - autosize was calced wrong
• Fixed bug in iframe mode in sticky plugin
• Fixed bug in fullsize mode when after enter editor was scrolled on top
• Fixed bug in fullsize mode + textIcons, old icons was not changed
• Fixed issue #18
• Added test for sizeLG,sizeMD,sizeSM options