Use HTTPS URL to git repository

(so that it works both with git and as a hyperlink on Hackage)
Allow text < 1.2
Bump version number to 0.2.0.9
Allow mtl-2.2

(Only tested compilation – but it’s Haskell :-))
Bump text upper bound
Bump version number to 0.2.0.10
Merge remote-tracking branch 'tibbe/master'