* modernise wxMathPlot, based on: https://github.com/GitHubLionel/wxMathPlot
* updated libJSONCons to v0.178.0
* updated libJSONCons to v0.176.0
* updated libCVS to v2.3.0 (fixing a race condition)
* updated libCVS to v2.2.3
* updated libCVS to v2.2.2
* updated libJSONCons to v0.175.0
- remove obsolete dependencies
* updated libJSONCons to v0.174.0
* add CVS parser GIT to update procedure