Ignored the dist and build dirs
Merge pull request #7 from jaimegildesagredo/python-ignore

Ignored the dist and build dirs
The formatter is no longer called inside the runner. Instead all
the specs are formatted at the end of the mamba execution.
Merge pull request #8 from jaimegildesagredo/formatters-decoupling

Decoupled the specs formatting and running
Avoid fails when formatting traceback and it does not exists
Version 0.4
Add installation instructions to README
Use pending instead of skip
Fix an error when trying to run specs from a module which doesn't contain any spec
Add coverage reporting feature

This feature will be enabled by default
Show a report summary in TravisCI if execution goes well
Do not track .coverage file
Extract a requirements file for development
Setup requirements development for travis
Report progress in real time when running specs
Report progress in real time when running spec groups
Notifies reponsability belongs to specs, thus moving to its specs
Extract methods for running specs
Use formatters throw reporters
Add a finish event which sends a summary event with a summary