More 64 bit fixes
Call g_type_init when running hsc2hs

Versions of GLib older than 2.36 require to call g_type_init before
any operation dealing with types. This breaks the build on these
versions, so add a #literal command to hsc2hs and use that for running
g_type_init before compiling GI.Utils.Properties on those versions of
GLib.
More verbose tests

Print a message when we start and stop each individual test, this helps
pinpoint the location of the problem if something goes wrong.