Rewrite p_* functions to use Unicode and marshal to UTF8 internally, take 2

repsitory: use better error code if path is too short for discover

GIT_EOVERFLOW means something different. Use GIT_ESHORTBUFFER. On the
way, remove a redundant sizeof(char).

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>

Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>

Add more -W flags to CFLAGS

Fix compilation issues with mingw64 headers

Use git_treebuilder to write the index as a tree

git_repository_config: open global config file automatically

Fixup status.c

filebuf.c: fix unused-but-set warning

Fix a bug and GCC warning introduced in 932669b8

Fix up examples code

Add checks for NULL to the config and remote free functions

Fix git_status_foreach tests

Don't use '__attribute__ visibility' with gcc unless it's at version 4 or better

version 4 or better.

There were quite a few places were spaces were being used instead of
tabs. Try to catch them all. This should hopefully not break anything.
Except for `git blame`. Oh well.

1. The license header is technically not valid if it doesn't have a
copyright signature.

2. The COPYING file has been updated with the different licenses used in
the project.

3. The full GPLv2 header in each file annoys me.

dirent_cb() didn't check the return value of determine_status().

Signed-off-by: schu <schu-github@schulog.org>

Provided the tests fail (which they should not) and the callback is invoked too many times, this prevents the tests from segfaulting.

Signed-off-by: schu <schu-github@schulog.org>

This allows to build both test suites at the same time

...Ops, I broke the old test when porting it to Clay.

Reverted signature of git_signature_new.
Removed error check wrappers (voted down). Made Makefile
work out of the box on Linux and Solaris when standard
cmake build instructions for the library are followed.