Revert "glog: gflags compatibility fix"

This reverts commit d12fcb69b9f8aaa29552195baec4c8099fcef32f.
Revert "gflags 2.1.1"

This reverts commit fc18d80715e33ef17f0c238413e2ce51f0077cc6.
gflags: add 2.0 bottle.
glog: add 0.3.3 bottle.