(svn r18283) -Feature: [NewGRF] Add new price bases for removing industries, building/removing unmovables (new objects), building/removing rail-waypoints/buoys, interacting with town-authority, building foundations, funding primary industries (when not prospecting) and towns.
If a GRF does not set price multipliers for these new prices, but for the previously used ones, the old modifiers will be propagated to the new bases.

(svn r15350) -Codechange: Create a spec array to hold the data definitions of unmovables objects.
Note that this is the very basic spec, it will be populated a bit more, later.

(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.