added the initial attack tests to see if we can crash server or reveal server environment
Merge pull request #240 from daviddahl/attack-test-suite

added the initial attack tests to see if we can crash server or reveal s...
Revised and moved encryptAndsignTests
removed old eAndS test
changed throws to asserts
fixed signature failure problem in verifyAndDecrypt, added a new test to handle bad signatures
moved order of test to the end
Merge pull request #243 from SpiderOak/encryptAndSignTest-noOutput

Encrypt and sign test no output
Verify hmacKey and containerNameHmacKey contents