Improved documentation.
General functions moved outside of the class.
Merge remote-tracking branch 'oscar'

Conflicts:
	spectraplotpy/importer.py
Improved test..
Improved tests.
Merge branch 'master' of git://github.com/lidiabressan/spectraplotpy into lidiabressan-master
Normalizing the content of the files
Starting the documentations.
Adding examples to the README
Merge branch 'docs'
CVS and Aviv exporters.
Add CSV and Aviv Exporters
Fixing some typos in the README file.
Adding sample code.
Some warning from Pylint checked
Merge branch 'master' of https://github.com/odarbelaeze/spectraplotpy