Implement fontforge_calloc veneer using xzalloc: seems to fix some crashes
search.c: fix warnings and shorten a little code
Allow libgc to instrument pthread_create
gio.h: remove some dead declarations
splineutil2.c: rename a variable called 'bool' to 'flag'
Use proper stdbool.h booleans
Fix crashes with moving splines

This arose because SplinePoint data was being held in glib lists, which
were not scanned by libgc, and so the SplinePoints were assumed to be
garbage, and collected.

The fix should have been to make glib use libgc, but the ability to
change the allocator was broken in glib 2.36:
https://bugzilla.gnome.org/show_bug.cgi?id=701694

Hence, we have to avoid storing data blocks allocated by libgc in glib
data structures.

Hence, use gnulib lists instead.
Merge pull request #1299 from rrthomas/master

Fix various libgc-related crashes
Remove true and false #defines
Abstract creation of gl_lists
Merge pull request #1300 from rrthomas/master

Slight tidy-up
attempt at fixing the revert-to-more-glyphs bug
osx: allow a flush on the python env and selection of the system default
     python executable. Having lldb itself use python can be quite troublesome.
Merge pull request #1312 from monkeyiq/2014apr/issues/1293v1

osx: allow a flush on the python env and selection of the system default
osx: some smaller build scripts, some documentation on the build environment and
     procedure.
Merge pull request #1313 from monkeyiq/2014apr/issues/1256scriptupdate

osx: some smaller build scripts, some documentation on the build environment and procedure.
Perform bounds checking on buffer given to CVMakeTitles().
Use MAXPATHLEN+1 for size of dirname_ rather than hardcoded constant.
osx: add archive and upload script
Merge pull request #1316 from monkeyiq/2014apr/issues/1256scriptupdate2

osx: add archive and upload script