Use configuration for rmFormat plugin

Only the rmMsWordMarkup toggle was being used and all other toggles and
configuration were being ignored.  This was also enabling the MS Word removal
even if its toggle was not specified despite the default being false.
Only run MS Word removal upon paste

Don't strip anything else that might be enabled upon paste.
Add inline CSS text formatting removal to rmFormat

Since some browsers don't strip things like background-color or other properties
when the execCommand is used.  This is enabled or disabled via the "formatting"
rule option.