Fully qualify the HyTypeError reference

No need to import it explicitly, the hy module is available everywhere.
Someone fix this with a real path
Merge branch 'master' into pr/314
eg: add appengine skeleton
eg: add tryhy
eg/tryhy: update appid
eg/tryhy: update title

eg/tryhy: update title
Ship the hy files in hy/contrib
eg/tryhy: add error handling
ex/tryhy: per request repl instance
eg/tryhy: add version number
eg/tryhy: enable warmup request
eg/hytry: add performance settings
eg/tryhy: add blinking cursor
eg/tryhy: add server_sofware to welcome message
Fix rply dependency.

To test this, replace the https://github.com/hylang/rply/zipball/master#egg=rply-0.6.2
url with https://github.com/berkerpeksag/rply/zipball/master#egg=rply-0.6.2
in setup.py.

$ cd hy
$ virtualenv dummy
$ . dummy/bin/activate
$ pip install .
$ pip install astor nose
$ make test
...
...
Ran 252 tests in 9.723s

OK
eg/tryhy: add skin and meta tags, remove blink
eg/tryhy: add footer
Ignore me.
Merge branch 'master' into pr/316