Woofer player v1.0 Release Candidate 1

Version 1.0 release candidate has all features planned to v1.0 implemented. But still it might be buggy.

Changelog since v1.0-pre
a558b44 multiple selection implemented
06ad9d6 fixed removing items from playlist
68ea1b6 test template added for user scenarios testing
37f0952 future work edit
3ef77ef fixed version tag parser to be more robust
b033c86 added woofer web url
521b316 fixes
03e6371 release link