Various text changes to reflect more idiomatic English usage:

  * Changed 'Not expected FOO to BAR' to 'Expected FOO not to BAR'
  * Changed 'Not expected FOO' to 'Did not expect FOO'
  * Changed 'FOO not expected to BAR, but it is' to 'FOO not expected to BAR, but it did'
Fixing tests to reflect language changes
Merge pull request #130 from ciaranmcnulty/master

Text changes for some responses