Revert "Merge branch 'feature_f' into development"

This reverts commit 5a442e7a599fb4c5109a90c6e48e92245b504555, reversing
changes made to 7ae67830cf9d4788896d80fb5f2ad5621283759f.

Conflicts:

	app1/file1.txt
Revert "Revert "Merge branch 'feature_f' into development""

This reverts commit 8f2433dbf6ecd23b2c500525ea320d816262b8fe.
fixing bug in file1.txt
Merge remote-tracking branch 'origin/feature_f' into development
Merge remote-tracking branch 'world/development' into development