cherrypick / merge improves selection of cells in IE; use shift-click to select a cell range (gentics #51777)
merging upstream
merging...
floating of characterpicker #gcn-51248
specialchar overlay now floats with the menu... except IE7 right now...
specialchar popup now follows the floating menu
Added changelog entry for changes

Conflicts:

	build/hotfix-changelog.md
fixes #806 -- characterpicker styling
Removed trailing comma in the define list of the characterpicker-plugin
js-beautify modified table-cell.js
merge upstream
Fixes potential bug causing '/' in attribute names
Fixes potential bug causing [/>] in attribute values
merge upstream
Merge branch 'release' of github.com:alohaeditor/Aloha-Editor into hotfix
Merge branch 'hotfix-51777' of ssh://github.com/evo42/Aloha-Editor into hotfix
used hints from #749 to decrease icon file size

Conflicts:

	doc/guides/output/images/MultiSplitButton.png
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