Merge pull request #11 from mdoube/testing

Testing
Help: restore -testing branch tag
Anisotropy: give user the option to record eigen vectors and values
AnalyseSkeleton: update with changes in Ignacio's FIJI version

Will be nice one day to be able to use a proper dependency
management system and stop bundling code like this...
ImageCheck: add ImageJ version blacklisting

Refuse to run if a known broken version of ImageJ is being used.
RoiInterpolator: check environment and return if something is missing
usageReporter: add space between os.version and os.arch
HU calibrate calibration curve
Slice Geometry: fix bug in HU->density calibration

Reported by Catherine Ambrose of U. Texas at Houston.
Moments: fix HU -> density calibration
BoneJ version 1.3.12
Merge branch 'master' of git://github.com/mdoube/BoneJ
Modified soft tissue analysis to take manual roi into account, if selected
Merge pull request #52 from tjrantal/master

Soft tissue analysis manual ROI fix