Fixes #2869. If included file includes more files, it may reallocate
cfg_file->readers, hence invalidate not only `r` pointer, but `result`
pointer as well.

It fails at least on my computer, though it may depend on some unpredictable
factors (say, will realloc() extend the memory segment in place, or it will
allocate new memory).

Speed up AppVeyor builds.

AppVeyor build machines come with Python 2.7 and CMake 2.8 pre-installed and in the PATH.

repository: parse init.templatedir as a path

This is a path so we must use the path getter so we get the tilde
expansion done.

Update clar to d17c7f6

Handle 8dot3 filenames being disabled on Win32

for-each-ref example: initialize libgit2 in main

I don't get how it was working without git_libgit2_init() call. I run it
and libgit2 throws assertion somewhere in its internals. Now it works.

Updated commit with shutdown at the end.

Fixes for pedantry

README.md: Add Swift bindings "Gift"

structinit test: use %PRIuZ instead of %d for size_t

Tell user if libssh was not found

AppVeyor: Prettify build script

Fixes #2665

diff docs: update `git_diff_delta` description

64-bit Appveyor Builds

Clarified git_repository_is_empty() documentation

config: add parsing and getter for paths

Allow passing a NULL index to git_repository_set_index()

Fixed typo in git_repository_reinit_filesystem() documentation

More coverity fixes

Make sure sys/repository.h includes the required headers

Fixed git_repository_set_bare() not setting "core.bare" correctly

openssl: Add all required includes for AF_INET6 and in6_addr.

describe example: fix memory allocation size

pathspec: do not try to dereference NULL

We need to allocate memory for sizeof(char *) * ncommits, not just for
ncommits.

Issue detected by GCC's AddressSanitizer.