rename baseWidth in structures.ini to width
rename baseBreadth in structures.ini to breadth
Merge pull request #40 from Cjkjvfnby/ini-rename-baseWidth

Ini rename basewidth and basebreadth to width and breadth for consistency
Terrain code should not use its own GL error function when we have a better one elsewhere.
Performance measurement hotkey added. Press ctrl+k in debug mode to grab a sample.
On level exit, it writes a .csv file with your samples. Also, for each sample it
writes a screenshot with a custom filename, so you can match up the sample with a
picture of what you sampled. For analysing where we have graphics performance problems.
Add back alpha test for non-pre-multiplied mode PIE models for now.
This closes ticket:4071
Misc display3d cleanups
Do not clear accumulation buffers each frame (we do not use them).
Add compatibility define for OpenGL timer query extension and older versions of GLEW.
Eliminate zero values from weapons.ini (set by default anyway)
Remove some unused code
Eliminate zero values from sensor.ini (set by default anyway)
Merge branch 'master' of https://github.com/Warzone2100/warzone2100