Merge pull request #1157 from grumpydev/async

Async
Fixed a couple of build errors
Fixed broken Owin packages
Updated rakefile to only build nancy nuspec files
Allow ':' characters in basic auth passwords
Made sure params are stored on context
Sorted post hook exception handling
Fixed failing tests
Add a test that reproduces the bug
Merge pull request #1 from Invizory/basicAuthBug

Add a test that reproduces the bug
Fixed more tests
Tidied up a little
Sorted out Owin Nuget references
Added resolved route to NancyContext
Cleaned up NancyModule code a bit
Moved test helper to bottom of fixture
Merge pull request #1163 from whatknott/basicAuthBug

Allow ':' characters in basic auth passwords
Merge pull request #1165 from jchannon/asyncdemo

Tidied up Async demo a little
Added back support for 405 responses
Made it possible to disable 405 support