Adds support for RTE changes tracking on cut/copy/paste content.
Fixes an issue where link within <ins> would sometimes disappear in RTE.
Fixes content becoming invisible when workflowing an existing content and saving it (as draft).
Fixes preview links with path info to work.
Fixes share preview not showing all changes when in scheduling mode.
Fixes search reset closing popups when nested.
Fixes dynamic placeholders to work in enhancement forms as well.
Merge branch 'release/2.3'

Conflicts:
	tool-ui/src/main/webapp/script/cms.js
	tool-ui/src/main/webapp/script/jquery.rte.js
Moves content state JS logic into its own file.