ENH: Add JsonCpp to the Superbuild.

Change-Id: I8e65d0a12a8a58aebf71f44fad07eca0acb158ec
COMP: Fix comparison between signed and unsigned integer.

Change-Id: I20868fd9f2e80f5dffe9e0c7ce278854890207bb
STYLE: Use variable for Dimension.

Also template the DoIt function in tubeDensityProbability.

Change-Id: Ifb847d8b85f4a8a4bca411a289c70f16c68b25a3
COMP: Fix deprecated conversion from string constant to ‘char*’.

Change-Id: Ic734a3ecb1bfda0457c69e2f71691d4f4aff9ee9
ENH: Add JsonCompareCommand.

Adapted from CalaTK.  For performing regression testing on
JSON file test outputs.

Change-Id: I0ace4217e9d086a1038e3f2d8a13ec33b61ec212
Merge topic 'JsonCpp'

e5ca99b ENH: Add JsonCompareCommand.
0fcf1cb COMP: Fix deprecated conversion from string constant to ‘char*’.
21f22a0 STYLE: Use variable for Dimension.
5117a7a COMP: Fix comparison between signed and unsigned integer.
b4b4091 ENH: Add JsonCpp to the Superbuild.