Optimizing the test scripts

- a new 'stripcolors' method has been added to the lib ; it basically strip any colors tag from a string
- all test scripts now uses, when necessary, the 'action' command line argument
Corrections for Darwin usage

- the "sed" command of the "stripcolors" method doesn't work ...
New clone installer script - package updraged to 0.0.5-dev
New installer script
Adding LICENSE file
Merge branch 'master' into wip
Merge branch 'wip' of https://github.com/atelierspierrot/bash-library into wip