Add script to install build depend for Debian

Add a script debian/deb-build-dep. The script parses debian/control file
and installs the necessary build time dependent packages to the system:

   $ sudo ./debian/deb-build-dep
Debian package: fontforge conflict fontforge-nox

remove sugguestion to install both.
Add a name value to splinepoint and add read/write support for that value in ufo.
Fix things.
Write to splinepoint instead of splinechar. (Oops.)
Move 'make FontForge.pot' to po directory
Merge pull request #1056 from JoesCat/master

Move 'make FontForge.pot' to po directory
Break pname copies onto separate lines for easier source-level debugging.
Fix structure.
Updating python documentation for macstyle
Merge branch 'master' of http://github.com/fontforge/fontforge
Implement point name support in the constructors and copiers.
Merge pull request #1057 from fontforge/point_names

Implement point name support and update the sfd format accordingly.
Default to cubic splines.
More credits, stopped reading at git 2003-7-31 for now...

..also include some very recent authors before making the next prep+build
Merge pull request #1060 from JoesCat/master

More credits, stopped reading at git 2003-7-31 for now...
First stages of ap class having no subtable
Basic change builds, no ufo support
Loads and saves UFOs with APs seemingly OK
Allow basechar and mark options on unknown APs