Reflect ShortenedReporting in the GUI

ShortenedReporting ON:
  - show "Report" button if the selected problem does not have
    'ABRT Server' reported-to entry
  - show "Comment" button if the selected problem has 'ABRT Server'
    reported-to entry but does not have 'comment' or 'comment' is
    empty
  - disable the button if the selected problem has 'ABRT Server' and
    also has non-empty 'comment'
  - the window never suggest reporting into Bugzilla

ShortenedReporting OFF:
  - the button is disabled only if the selected problem is not
    reportable
  - the button's label is always "Report"
  - the window suggest reporting into Bugizlla if the selected problem
    does not have "Bugzilla" reported-to entry

Related to #37

Signed-off-by: Jakub Filak <jfilak@redhat.com>
Reflect recent changes in the spec file

Related to #37

Signed-off-by: Jakub Filak <jfilak@redhat.com>
Let 'Comment' button enabled

Related to #37

Signed-off-by: Jakub Filak <jfilak@redhat.com>