variant int->integer; integer is long long
vtpath: JSONPath like query engine for variant initial implementation with simple case working
vtpath: recursive search implemented with basic tests
preeliminary json parser&writer added
json: first basic parse test passing
path.cpp: fixed valgrind error in join_append (Conditional jump or move depends on uninitialised value(s))
* variant: operator == and != added
variant: some trigaph fix
* json_test: added parsing&lexing tests for integer, string and error cases
* json: fixed several problems with parsing & lexing
json_writer: fix  array end output
fix CHECK_MAP_ENTRY_MATCH so it uses map::mapped_type internally
vtpath_test: added (now-succedding) reference tests from http://goessner.net/articles/JsonPath/
NEWS: mark some 0.0.3 additions