Use the distribution's description as a user-friendly plugin title

[Olivier Tilloy]

In the plugin management UI, we are currently using the plugin's name (as understood by distutils, see http://www.python.org/doc/2.5.2/dist/meta-data.html) to display a user-friendly name in the list of plugins (we trim out the leading 'elisa-plugin-' and capitalize the result). We also add the version number, which for a normal user is a totally useless piece of information. This is okayish but not very user-friendly.

The idea to improve this would be to use the plugin's description (supposed to be a short string) as a title, and the long_description as a real description of what it does.

Following is an example with the Yes.fm plugin:

1) Start Elisa, go to Plugins/Plugin Library.
2) Look for the Yes.fm plugin in the list, see how it is presented on the first line.

Expected result: it reads something like "Yes.fm, 2.0 music" (their motto, see http://yes.fm).

Current result: it reads "Yesfm 0.0.1".