Fix travis
Revert "Renamed method name 'start' to 'start_streaming'"

This reverts commit 69e2c64b00aa0070b3308744d5ad97fc4743270e.

Conflicts:
	account.rb
Add account_spec.rb
Merge commit 'cfdc91f'
Merge commit '1892034'
Merge commit 'd8e29e2'