Refactor props converter

Here is the properties converter refactored to what I sent BChan.

Note, I had to modify some things differently in the liferay-docs version to work-around not using portal-impl classes.

I tried to do the following with regards to the commits (in order):
1) show the source-formatting diffs.
2) rename the classes
3) remove Igor-based code (i.e. liferay-docs/properties-converter/)

Jesse - I'll go over my changes with you tomorrow.
Rich - the pull request to BChan is https://github.com/brianchandotcom/liferay-portal/pull/11167

Thanks guys.

@jrao