Revert "Use ruby 2.1.2-p95 from now on"

This reverts commit 796e69b64611feb69fe9ca111ca9687c247e7fe1.

Conflicts:
	Pods/Pods.xcodeproj/project.pbxproj
	Tokaido/Rubies/2.1.2-p95.zip
	Tokaido/TKDRubyConfigPatches.m
Merge pull request #70 from androbtech/fix_permissions

Fix file permissions.