Search modarchive modules by artist

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Search modarchive by title or filename

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Update version in manifest

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Fix module ID XML parse

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Add groundy-based module downloader

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Fix modarchive module download

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>