Start to improve install and uninstall bash script
Added lightbox function for bash.

Lightbox function displays a 80 characters line, with the chosen background (only blue for the moment).
It will be used for header in install/uninstall bash file.
Bash : new lightbox colors, install/uninstall script improved. Configuration python script has now default values too.
Added comment in config.py (console outputs must contains at most 80 characters)
Added os module, with "executeCommand" function.

This function will be use everywhere we need to execute an os command.
It's more flexible, if we want to replace the "subprocess.Popen" call in the future for example.
Returns the result string.
Improved os.executeCommand function.

executeCommand function catch now correctly pipes and vars with double quotes.
We use "shlex.split" in POSIX mode, this python function returns the command formatted for subprocess module.
config.py : Fixed default value for web server port.
Some fixes (Spelling, code syntax, etc.)
Fixes: round 2!
Spelling fixes in os module
Renamed "os" module to "system"

Big mistake: "os" is already a python core module. We cannot use this name, or our scripts will not able to find the native module.
In collectors, use new executeCommand function instead of subprocess calls

It's more readable and convenient, no? :)
Renamed "Web server port" option in config.py
English grammar and spelling fixes
Merge pull request #25 from miniche/develop-improve-install

Intall/Uninstall improvements
Merge pull request #27 from miniche/feature-os-class

Added os module, and executeCommand function
Removed green lightbox
Some fixes
Merge pull request #29 from miniche/develop-lightbox-bash

Removed green lightbox
Test git config