Replace the deprecated g_get_current_time with g_get_real_time. Adjust
the value calculation so it remains the same.

GParameter is likewise deprecated and provokes warnings.

g_object_ref passes through the type on GNUlike compilers. We need to
cast it before returning it.

git_submodule_update expects non-const options.

git_merge expects const data.

Replace a redeclaration of cloner_class_init with the expected
declaration of cloner_get_type.

Avoid mixing variable declarations and code.

Replace the use of 'ln' with os.symlink. Since subprocess.call does not
raise any exception when the called process fails, this script likely
silently did nothing on Windows. Instead, fall back to using shutil.copy
to copy instead of symlinking.

The script gets the *absolute* datadir passed as its argument. This
means os.path.join will throw away the MESON_INSTALL_DESTDIR_PREFIX,
breaking the symlinking when DESTDIR is set.

Also handle the case where the datadir is not inside the prefix by
prepending the destdir ourselves. We make the datadir relative to the
root by stripping the drive letter (if any) and the initial separator.

We only have one argument, so it does nothing.

We're exiting anyway so it's unnecessary.

Fixes #5

libgit to change SOVERSION from int to string. Relay on MAJOR MINOR VERSION

Generate a diff from two buffers (without a repository)

This reverts commit ec6bd8b2.

Finds the ancestry for two commits

Closes gitg#115

- Added ggit_remote_upload to push
- Added callbacks to inform user about progress pushing

This is breaking some builds that have strict compiler flags.