Revert "Merge branch 'tooling'"

This reverts commit c988b05bf5547687653fdd0e58f7cb963911befc, reversing
changes made to 998ffd9a315f00c3955565d8c01197966f7d3b60.

Conflicts:
	lib/restforce/concerns/api.rb
A separate client for the tooling api.
Merge branch 'tooling'