Merge branch 'release/v0.9.0'
Fix compile err (oops, non-existant header file!)
Introduce jsoncpp library into project

* This is our phased-in replacement for json_spirit -- yay! I was not
able to successfully get the project linked into nomlib as a static or
dynamic library on OS X, so... inclusion directly was satisfactory evil.
Luckily, jsoncpp came well prepared for that situation!

* See comments made in the cmake scripts for further insight...
Merge pull request #3 from i8degrees/dev

Dev
Bump TTcards version to 0.9.1
Fix user file path issue preventing TTcards from binary distribution

* Implement a temporary workaround for an unexpected conflict of a
generic debug macro used in both TTcards and Apple's official API
header files for determining OS X specific user paths.

* TTCARDS_DATA_DIR is now a proper constant string that is determined
upon execution, and not at build time via cmake. It is a sloppy 'fix',
but will be easy to clean up for other platforms when the time arises.
Merge branch 'hotfix/v0.9.1' into dev
Merge branch 'feature/jeff/jsoncpp' into dev
Merge branch 'dev' into feature/SDL2/jeff