[Fontforge-devel] aarch64 support for autotools

aarch64 is going to arrive later this year, and support for configuring
and building on it landed in autoconf 2.69. Currently fontforge has an
older version of autoconf used.

Graphical flowchart for build environment shown here:
http://en.wikipedia.org/wiki/Autoconf
Scripting access to nameslist datablocks(start, end, name)
Add *.xpm and *.c bitmap choices to FontForge

Seemed *.xpm was partially finished, therefore added it.
There is also a function for building internal FontForge images and now
that it's working okay, added that also to the bitmap export menu too.
(http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=675492) add 256x256icon
Merge pull request #546 from JoesCat/Add_2_Bitmaps

Add *.xpm and *.c bitmap choices to FontForge
Merge pull request #545 from JoesCat/namelist_blocks

Scripting access to nameslist datablocks(start, end, name)
Merge pull request #548 from JoesCat/256x256icon

(http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=675492) add 256x256icon
desktop file update
Merge pull request #549 from JoesCat/master

Desktop file
Merge pull request #481 from JoesCat/2013mar26_aarch64_support

2013mar26 aarch64 support