Initial commit based on existing package

Why make a different package
1. use the newer version, 0.9.9 is almost one year old
2. also generate mu4e package (wonder why they didn't include it first)
Add mu4e package building and etc

1. mu4e always gets built
2. update to version 0.9.9.5
3. separate changes files
4. use gtk3 instead of gtk2
Fix rpmlint warning

changes to %buildroot should not be done in %build phase, as it might break short-circuit building.
Update patch for new version.
Fix building bugs.