Use the more reliable https protocol for submodules

Certain machines may not be able to use the git protocol due to
firewall intervention. Use https instead.
Implement RsaSha1Signature

PyCrypto is used for it's RSA/PKCS1v1.5 implementation; if it is not
present, NotImplementedError will be thrown.
differentiating normal and dev requirements
ignoring build dir
making service and session objects serializable
Merge pull request #115 from maxcountryman/serializable-redux

making service and session objects serializable
python 3 support
version 0.6.0
Merge pull request #116 from maxcountryman/py3-redux

Py3 redux
version 0.6.1
Merge pull request #117 from litl/py3-redux

version 0.6.1
using updated theme
making OAuth access token name dynamic
Merge pull request #119 from maxcountryman/dynamic-access-token-name

making OAuth access token name dynamic
version 0.6.2