Revert "Use jquery-rails from github (fix Gem::Version error)"

This reverts commit 6f3f0f86332004fcee5c2f05d52bbff08c22f980.
Revert "Use jquery-rails from github"

This reverts commit 7a9a7007637b8279501770be03bd84ce83d61ab8.

Conflicts:
	railties/lib/rails/generators/app_base.rb
change merge to merge! in AS on new hashes
Added missing assert
Merge pull request #10042 from choudhuryanupam/fix_activesupport_test

Added missing assert
Merge pull request #10041 from vipulnsward/more_destructive_merge

change merge to merge! in AS on new hashes