Fix a few issues with the preparation of plugins data, in the admin tab.  - the metadata for plugins in eggs was not properly used  - fix the description shown as "None."
Fix a few issues with the preparation of plugins data, in the admin tab.
 - the metadata for plugins in eggs was not properly used
 - fix the description shown as "None."


git-svn-id: eda3d06fcef731589ace1b284159cead3416df9b@6880 af82e41b-90c4-0310-8c96-b1721e28e2e2

walty8/trac,jun66j5/trac-ja,jun66j5/trac-ja,jun66j5/trac-ja,jun66j5/trac-ja,walty8/trac,walty8/trac,walty8/trac,netjunki/trac-Pygit2,netjunki/trac-Pygit2,netjunki/trac-Pygit2