Start using the variable $tmp_dir in GP_UnitTestCase to make the code work.  See #323.
Remove ?> of the ending of files.  See #323.
print_exported_file in a GP_Format should return, not print. See #317

- All other formats return
- Calls to GP_Format::print_exported_file() are all preceded by an echo if output is necessary
Add indices on the original tables, fixes #319
Branching: performance improvements. About 20% faster on a project with 15k originals.

- Speed up the originals lookup by doing a non binary comparison (much faster since we now have indices - see #319).
- Lower memory usage by only getting the original ID rather than the full object.
- Lower memory usage by using _no_map when looking for transations sets.

See #65, See #300
Eliminate the use of extract() in MO::import_from_reader(). Props wonderboymusic.

See #328
Import "fuzzy" flag. Props nacin.
Also includes one basic test.

Fixes #138
Remove unused variables in GP_Test_Thing_Translation_set. See #138
Remove dead code in GP_Test_Project. See #323
Remove dead code in GP_Test_MO. See #323
Fix test and remove dead code in GP_Test_Thing_Original. See #323
Fix test and remove dead code in GP_Test_Permissions. See #323
Fix test and remove dead code in GP_Test_Thing_Translation. See #323