Bump the version to 1.2.1
Revert "Move some JavaScript files to the end of the layout"

This reverts commit eee7e3249d38c9a4fbab247eba03734cc1b97ec4.
Apply async on some JavaScript files
Merge branch 'hotfix/1.2.1'
Merge tag '1.2.1' into develop

Version 1.2.1