Fix filtering by distribution name in several queries

The comparison of distribution name should always be done in lower case so that the results do not depend
on the spelling used by the user.
Add the possibility to map project to a package name in any linux distribution
Change the project list order to be alphabetical case insensitive
No need for css column but need to table column headers
Fix a missing closing tag and remove css column that was not needed
Add a place listing all the distros participating
Let's put a verb in the sentence...
More documentation about the default regex provided
Use javascript to add rows to the distribution name  <-> package table

This allows adding several mapping in one go.
Add option to edit the name of a distribution

This is only available to admins and can be used to fix the case of a distribution linux entered with
the wrong case (ie: centos instead of CentOS).
Add method to check the version retrieved by cnucnu on the fly

Using the check button one can check which version cnucnu retrieves with
the information provided.