IE: Right click on selected content not removes the selection.

The problem was that 'beforepaste' event was thrown when right clicking. The 'beforepaste' event was used to copy/paste content for IE. With this fix the 'beforepaste' event is not necessary any more, the whole copy/paste process is done in the 'paste' event. This solution is only for IE8 and below. For other IE versions (9 and above) the event 'beforepaste' is still needed.
Merge pull request #1137 from najor/hotfix-0.24.x-rt53267-copy-paste-ie

IE: Right click on selected content does not remove the selection.
align-plugin: Alignment inside table cells is now permitted.

Setting alignment inside a table cell was not permitted unless the cell content was wrapped inside a block element. With this fixed this action is now permitted.
Merge pull request #1143 from najor/hotfix-0.24.x-rt57958-table-cell-align

align-plugin: Alignment inside table cells is now permitted.
[maven-release-plugin] prepare release alohaeditor-0.24.22
Added generated changelog mapping
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] prepare release alohaeditor-0.24.22-commercial
Added generated changelog mapping
[maven-release-plugin] prepare for next development iteration
Remove bogus mapping
Merge branch 'hotfix-0.24.x' of github.com:alohaeditor/Aloha-Editor into hotfix-0.25.x

Conflicts:
	pom.xml
[maven-release-plugin] prepare release alohaeditor-0.25.4
Added generated changelog mapping
[maven-release-plugin] prepare for next development iteration
Merge branch 'hotfix-0.25.x' of github.com:alohaeditor/Aloha-Editor into dev
Added check for heading hierarchies

Check the hierarchy of all headings in an editable. If the hierarchy is violated, a class "aloha-heading-hierarchy-violated" is added to the heading. It is also checked if the hierarchy of a heading is lower than the highest allowed hierarchy in the configuration.
Merge pull request #1148 from rainerda/check-headlines-hierarchy

Added check for heading hierarchies
Add missing plugin repository information

(cherry picked from commit d4613549fef109541b30a27a252c2fdaf047ccd9)

Conflicts:
	pom.xml
Merge branch 'hotfix' of github.com:alohaeditor/Aloha-Editor into dev