Ensure response_nonce and sig have no spaces

Change-Id: I84da94a98057dab17cf4113c63a6d96b0abd458b
Add a test for request sanitation.

Also renamed tests to be more indicative on what they're testing.

Change-Id: I31920c94b79ef1a0e1bd914d49003e24d33a076e
Merge pull request #4 from freerunningtech/ensure_no_spaces

Ensure response_nonce and sig have no spaces