updated submodules to github locations and added eclipse .project file.
Merge pull request #1 from niftools/feature/submodule_updates

Submodule updates
Submodule update
Merge pull request #2 from neomonkeus/update/submodules

Submodule update
Merge pull request #3 from niftools/release/0.5.0.0

Release/0.5.0.0