First draft of release notes.
Merge branch 'release/2.5.0' into feature/r2.5.0_release_notes
Update to release notes
Fix broken links caused by reorganization of packages.
Fix broken links.
Added Spark comments.
work in progress
fix duplicate labels by moving included example files to _examples
rename example files back to .rst, move examples/index.rst into getstarted.rst
Merge branch 'release/2.5.0' into feature/doc-examples
integrate first steps app
added wordCount example, fixed the location of libexec directory
Merge branch 'release/2.5.0' into feature/r2.5.0_fix_docs2

Conflicts:
	cdap-standalone/src/dist/README
Fixing broken links.
fixes to countRandom and wordCount examples
Merge branch 'feature/doc-examples' of github.com:caskdata/cdap into feature/doc-examples
Release notes update.
Fix Readme.
addressed jj's comments
Merge pull request #333 from caskdata/feature/r2.5.0_release_notes

2.5.0 Release Notes