Fix add method in Gauge and Counter metrics classes
Merge pull request #69 from marguslaak/master

Fix add method in Gauge and Counter metrics classes
New Release. Closes #69
Allow the user to pass in a function to be applied to metric names
as they go though the system. Provide one that ensures valid
metric names
python 3.3 does not have the u syntax. Luckily the test does not require it
using the context manager was cute, but we really should be sure we can construct the connection with sanitation
fix readme
put in a - for every character removed to indicate invalid characters
Seems like yall should support python 3.4
Merge pull request #71 from Bachmann1234/python3-is-pretty-cool

Seems like yall should support python 3.4
Merge pull request #70 from Bachmann1234/add_sanitization

Allow the user to pass in a function to be applied to metric names
Update contributor section
Release 0.5.0 with ability to sanitize metric names; other minor changes
Pypy support can be helpful
Replace a collection of invalid characters with ONE dash rather than a bunch
Merge pull request #74 from Bachmann1234/pypy

Pypy support
Merge pull request #75 from Bachmann1234/change_dash_behavior

Use one dash to replace multiple bad characters
Release 0.5.1
Merge branch 'master' into feature/aggregator