Return a deep copy of retrieved templates

Closes #32
Use group type when creating attachments

Closes #33
Test on Python 3.3 and 3.4
Updating version numbers and Python versions
Adding nose to Travis build spec
Attempt to fix missing sidebar in RTD
Stop testing on Python 3 for now

The build is breaking due to some stupidity on my part
Removing toctree directive for RTD
Setup changes

- Docs only included in RST format now
- A setup.cfg
- Now including package data
Altering dir structure for tests

This should allow Nose to find the tests on Python 3
Version bump
Updating Python 3 version to 3.4
Enabling Travis test for Python 3.4
Add API v3 items response doc to tests
Adding v3 JSON responses in subdir
Auth and API changes

API version and authentication are now sent via custom headers
WIP: Moving to pure JSON responses by default
Remove stray bracket
Fixing default headers
JSON WIP