Removing windows DLL warnings.
Merge branch 'master' of https://github.com/SCIInstitute/spire
Fixing more windows warnings and 1 bug.
Fixed no-SCIRun interface.
Correcting errors in function documentation.
Windows build fixes
Removal of glew and beginning of support for core profiles.

Will be testing windows next.
Merge branch 'master' of https://github.com/SCIInstitute/spire
Re-add GLEW bare essentials for Windows.
Re-add glew to windows build only.
Spire now working again on Windows through glew.
Add glu to linux build.
Grant access to function prototypes in linux.
Fixing linux build errors.

Linux compiles cleanly now.
Fix threading support in X11.
Switching to assimp 3.0.
Moving assets and shaders around.

They don't belong in the spire library, but in application specific
code.
Merge branch 'master' of https://github.com/SCIInstitute/spire
Removing unused build settings and moving build around.

Tuvok has been moved to an extensions directory. It is not a core part
of Spire. AppSpecific will find its way into this extensions
directory as well. The current AppSpecific module really isn't
specific to SCIRun, it's more of a Camera / Window handling extension.
Moving tests around.

Tests are now in the root of the repo, away from the primary
spire library (which doesn't touch them).