This is more consistent with what is done for other pkg-config
variables.

CMakeLists.txt: Remove extra parenthesis

Fixes #333

Add JSON_EMBED encoding flag

The JSON_EMBED encoding flag causes the opening and closing characters
of the top-level array ('[', ']') or object ('{', '}') to be omitted
during encoding. This feature makes it possible to concatenate multiple
arrays or objects in the stream output. It also makes it possible to
perform outputs of partial composes.

One such example of a partial compose is when outputting a JWE object.
The output is a JSON object. But it has one top-level attribute
("ciphertext") that can grow out of proportion with the rest of the
metadata. With the JSON_EMBED flag, the other metadata can be composed
ahead of time and dumped during the beginning of output, where the
"ciphertext" and "tag" attributes can be streamed out in chunks. Thus,
the header material can be composed with Jansson and the ciphertext
itself can be composed manually.

Helper functions for network IO

The primary use of these functions is easy loading
and dumping from stream sockets.

Signed-off-by: Nathaniel McCallum <npmccallum@redhat.com>

This function encodes the json_t object to a pre-allocated buffer.
It compliments the already existing json_loadb() function and is
useful for parsing JSON-RPC (among other protocols) when sent over
datagram sockets.

Signed-off-by: Nathaniel McCallum <npmccallum@redhat.com>

parens for LONG_LONG_INT in cmake

when this is defined as "", cmake bails with an error about arguments in
if

part of conditional expression is always true (!done)

Fix passing redundant argument to error_set()

Allow parsing of buffers larger than 2GB on most 64 bit arch.

size_t is usually 64 bits on most architectures -- this allows for larger .json files

Fixes #306

Allow install targets to be optionally defined

Added test files to .gitignore

Fix typo

Add support for the cleanup attribute in GCC/Clang

The new json_auto_t macro allows easy declaration of json_t types that
automatically decrement at the end of their scope.

Fixes #300

Fixes #300