Updated copyright to include 2013
Relax constraints on tasty
Adapted to syntactic 1.9
Relaxed constraints on Tasty

Conflicts:
	feldspar-language.cabal
Remove stale function names in imports.
Remove more stale function names in imports.
Merge pull request #79 from pjonsson/buildfixes

Make the tree build with Syntactic 1.9.
Test on both 7.4.2 and 7.6.3
Add an embryonic RealFloat class containing atan2
Merge branch 'master' into arrays