Add version information related functions
Add gswe_find_*_info() functions to find registered Gswe*Info objects
Add documentation for GSWE_PLANET_LILITH
Remove debugging line in gswe_init_with_dir()
Fix error that makes class init fail on machines with UTC as time zone

For a more universal solution, the default values for a GsweTimestamp
are set according to the current UTC time, with time zone also set
to UTC.
Fix GsweTimestamp test not to use deprecated functions
Add time zone check to GsweTimestamp test case
Fix time zone value to be a float in GsweTimestamp test case
Code beautifying in gswe-timestamp.c

Wrap really long lines
Remove gswe_init() call from GsweTimestamp initializers

That call is unnecessary for time related functions.