(svn r9022) -Fix [FS#660]: Airport state machine fails if the adjustment in position is less than 4 pixels. The new planespeed movement made this a fatal error on the oilrig. This fix just corrects the oilrig movement orders so that the error does not occur.
Full solution is to allow minor corrections without changing the facing of the aircraft. (spotted by ledow)

(svn r8559) -Fix

-Codechange: Put the airport movement data into struct AirportFTAClass

(svn r7759) -Merge: makefile rewrite. This merge features:
- A proper ./configure, so everything needs to be configured only once, not for every make.
- Usage of makedepend when available. This greatly reduces the time needed for generating the dependencies.
- A generator for all project files. There is a single file with sources, which is used to generate Makefiles and the project files for MSVC.
- Proper support for OSX universal binaries.
- Object files for non-MSVC compiles are also placed in separate directories, making is faster to switch between debug and release compiles and it does not touch the directory with the source files.
- Functionality to make a bundle of all needed files for for example a nightly or distribution of a binary with all needed GRFs and language files.

Note: as this merge moves almost all files, it is recommended to make a backup of your working copy before updating your working copy.