app
deleted tmp files
without suggestion
postgres production in gemfile
postgres casting
fixed named routes
validates presence of longer and shorter fields
shorter url evaluated in model
busy scope in Short model
10 tries to get new uniq short value
more functions to get new uniq short value
fixed f function
test f function
test uniqueness of shorten field with aspect
conditional generating shorter field; only if its blank
Revert "test uniqueness of shorten field with aspect"

This reverts commit d9025da3bbfd18ae55ae20cdd5f651b649a55f66.

With conditional generating shorter b9bb98e1f0993bfc5a4adca7e81da25f4b666a87 tests dont require to use aspects anymore
test Short.busy
simple test of presence validation
test url
postgres fix