add filters to the slot creation thing
force user to use the date picker
added an slot show formular
add proposals to the slots show menu
remove tracks slots controllers
workout the slot update process
add a simple helper for slots
add empty messages for slots without a proposal
just show proposals into a given state
fix proposals layout
add single rate per user within proposals
add rates comment
Revert "add rates comment"

This reverts commit ee8d17aa9bfc4e573b1f45e487702e5f34bada22.
Revert "Revert "add rates comment""

This reverts commit 759b05d7829275e2426812252abd11830e91006b.
make current rating editable
add rating to some other places
fix proposals layout pages
small changes