Update README.md
Updated aosl and aosdesigner versions.
Added license information.
Removed AOS Web Player demo repository as it will be merged with the AOS Web Player repo.
Updated subrepos with all license information.
Rename LICENSE.txt to LICENSE.md
Added some instructions on submodules.
Merge commit 'c7c7c9f7a8918b1d431a5056e7288155992aafb7'
Fixed license files extensions.
Build directory will be in the generated projects directory instead of the source directory.
work in progress...
Merge remote-tracking branch 'remotes/upstream/master'