Added callback to toggleRead()

Regards #119
Added callback to toggleStar()

Regards #119
Added callback to togglePublished()

Regards #119
Fixed Reference Error

Introduced by a combination of commits
b9a432bd245cfd6a75c30024a1a4c3f902d28ecb and
5eb1adce67d96811f0b85c0da3568e3d076c054a .

Regards #114
[sailfish] Fixed cropping in “All articles” feed

Regards #127
[sailfish] Fixed cropping in CategoryDelegate

Regards #127
Merge pull request #126 from michael-k/fix

Fixed Reference Error
Merge pull request #128 from michael-k/cropping

[sailfish] Fixed cropping in “All articles” feed and top Categories view
Merge branch 'callbacks' of git://github.com/michael-k/ttrss into michael-k-callbacks
[harmattan] added fixme notes