Also, add a table of contents, and a brief section on using json-c with links to
the header files most likely to be useful.

Fix a VS 2015 compiler warning.

In VS 2015, the warning text is "warning C4550: expression evaluates to a function which is missing an argument list".

Seems to perform better than outputting to string
and re-parsing it.

BENCHMARK - 1000000 iterations of 'dst2 = json_tokener_parse(json_object_get_string(src2))' took 20 seconds
BENCHMARK - 1000000 iterations of 'dst2 = json_tokener_parse(json_object_get_string(src2))' took 7 seconds

It should make a difference on embedded systems.
The test was performed on a i5 desktop CPU [~3.5 years of age].

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

Because doing `json_tokener_parse(json_object_get_string(src))`
feels sloppy, dirty, and makes me want to cry at night
sometimes.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

Issue #338, add json_object_add_int functions

Add several additional test cases for partial parsing of infinity values.

Also, emit the input string in the output so it's easier to see what's going on.

build: fix build on appveyor CI

Fix makedist

Got the idea from this blog post:
  http://www.enchantedage.com/node/231

Simple & concise stuff :)

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

Always include <string.h> before _json_c_strerror() definition.
Should fix linker issues on MSVC.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>