default-language

revert gtk3-as-default decision.

poppler version up to 0.14 (to match gtk2hs.) remove PopplerOrientati…

…on to be

compatible with poppler C lib version > 0.39. Resolved the issue #17.

hackage uploaded version 0.13.1

version up to 0.13 matched with gtk2hs version (now constraint for gt…

…k == 0.13.*)