Update LICENSE from CC BY-NC-SA 3.0 to BY-SA 3.0

Updated the license to allow commercial use. This is important for white label partners.
quickstarts for new buildpacks
add doc fixes by @Liz0
add doc fixes by @Liz0
remove now officially supported buildpacks
add gradle quickstart
review changes by @liz0
Consistency edits

- change all example app names to the standard cloudControl language-example-app format
- make sure the command cctrlapp APP/default push is used everywhere