Fixes GH-30.

While at it, reword the object iteration protocol description a bit.

With this flag enabled, the decoder stops after a valid JSON input and
thus allows extra data after it.

Fixes GH-25.

Fixes GH-27.

With this flag, a decoding error is issued if any JSON object in the
input contains duplicate keys.

Fixes GH-3.

Closes GH-15.

Closes GH-19.

Thanks to Jonathan Landis for the initial patch.

Closes GH-20.

Conflicts:
	doc/conf.py
	src/jansson.h

Replace them with jsonp_malloc() and jsonp_free() to support the
custom memory allocation.

The keys which are stored temporarily to a hashtable to make sure that
all object keys are unpacked, were hashed with the object key hashing
function. It is meant to compute hashes for object_key_t values, and
it works incorrectly for plain strings.

Fixed by introducing suitable functions for hashing and comparing
strings for string-keyed hashtables.

Also, set documentation release to "2.0+git". This shows up in the
automatically built HTML documentation.

These changes makes it easier for library users to know that this
version is under development.

Closes GH-14.

* Use "printf" instead of "echo -n" as it's more portable
* Treat a test as skipped if it exits with exit status of 77
* Skip the check_exports test if "nm -D" doesn't work

Closes GH-17.

Return 0 as documented if the argument is not a JSON object.

Closes GH-18.

va_copy() is a C99 feature. In C89 implementations, it's sometimes
available as __va_copy(). If not, memcpy() should do the trick.

While at it, add -Wdeclaration-after-statement to AM_CFLAGS to catch
these in the future.

Closes GH-16.

It seems that the only way to do this is to use the dvi make target,
as it's built in make distcheck after running configure.