Formatless Copy/Paste not working.

When paste action was made the formatlesshandler was never called. We manually call this handler before pasting the content into the DOM element.
Tooltip covers color palette

The colors tooltip doe not disappear when the color palette is shown. Calling the blur() method after the color palette is shown fix the problem.
Resize guide not showing last column/row

The width of the guide was calculated between the subtract of innerHeight and outerHeight of a cell component. The subtract could some times be 0, which mean the guide will not show. The solution is to have a minimum width so the guide will always display.
Merge pull request #1034 from najor/hotfix-drag-col-row-last-col-rt55437

Resize guide not showing last column/row
Merge branch 'najor-hotfix-textcolor-label-rt57078' into hotfix

Conflicts:
	build/hotfix-changelog.md
Merge branch 'hotfix-formatlesspaste-not-working-rt56692' of github.com:najor/Aloha-Editor into najor-hotfix-formatlesspaste-not-working-rt56692

Conflicts:
	build/hotfix-changelog.md
	src/plugins/common/paste/lib/paste-plugin.js
clean up paste plugin a little
Improve constant name