build libxml2/libxslt without python on RHEL/Centos5
using local libxml2 vesion in self-built libxslt
some comment fixes on Centos/RHEL 5
fixed some windows libxslt makefile issues
some fixes around debug version of Python 3 on Windows
small fix around libxslt build RHEL/Centos 5
added JSON filter stubs
some more work on rapidjson filter
Merge branch 'master' of https://github.com/mbarbos/Wolframe
added some documentation around WITH_RAPIDJSON
added rapidjson package
removed rapidjson
disabled some sqlite exception tests for now (see WOLFRAME-55 and WOLFRAME-56)
replaced rapidjson (no full unicode support and postability issues like 32bit int and playing with indians by cJSON
Merge branch 'master' of https://github.com/mbarbos/Wolframe
 ..
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added support for charset encodings and guessing needed by filters and 3rd party libraries with no direct support for it (cJSON)
Merge branch 'master' of https://github.com/mbarbos/Wolframe
fixed the DDL question mark bug