Revert "Fixed selector interpolations to comply with LESS 1.3.1 - 1.4.0"

This reverts commit 7ff9ac0b5429feddeab4fb643ecaa9ee4544248e.

Conflicts:
	less/modules/mixins.less
Revert "removed draft comments"

This reverts commit ca3453978dd87f74ab136ee611e5eb7648ab90f5.

Conflicts:
	less/modules/mixins.less