Blitz getFileSetFiles() and getArchivedFiles() REMOVED

These are not needed as they're covered by getImportedImageFiles()
showOriginalFilePaths() replaces countFilesetFiles() in template
Keeping Blitz image.getArchivedFiles() ** Deprecated **
Fix offline build See: #10465
Re-enable .travis.yml

Either due to the recent specification cleanup or due to
changes on travis-ci.org itself, the build is now passing.
Introduce omero.constants.DEFAULTBLOCKSIZE

Use of MESSAGESIZEMAX (64MB in kb) was seriously affecting
performance on upload of FS files. This commit introduces
DEFAULTBLOCKSIZE at 5MB in byte.

A further option would be to make it configurable via etc/ice.config.
Add git to travis build
Fix whitespace in client.{h,cpp}
Split unit tests into individual builds

See: http://about.travis-ci.org/blog/2012-11-28-speeding-up-your-tests-by-parallelizing-them/
Simplifying .travis.yml

Previous build with multiple TESTBUILD files
failed with out of space and other errors. Until
the build can be sped up and simplified, a simple
compile test (and for Python, unit tests) probably
suffices.
Make client-side block-size configurable

DEFAULTBLOCKSIZE is now properly just the client-side default.
Setting omero.block_size on the omero.client object can modify
the value that client.getDefaultBlockSize() will return. Tests
added in each of the languages.
Fix python test suites
Fix fstest/model.py 'compile' issues
Add __init__.py to test packages
Review list and map iteration.
Check cache ID before resetting size.
Do not shutdown the cache when switching user (see #10502)
Modify the way the registry is accessed.
Improve the file upload logging slightly.
Move getting session until after wait. Fixes #9936