custom build tool: FLUID-3007

[Laurel A. Williams]

Am I driving anyone crazy yet? I do like to work in small cycles, so 
having commit access is wonderful! Hope my fav reviewers can keep up 
with things and that they will let me know if I could do things in 
another way to make things easier for reviewing.

http://issues.fluidproject.org/browse/FLUID-3007 addresses Colin's 
comment about the global variables in postProcessor.php.
"In postProcessor.php, I notice that you define $minified and $includes 
as global variables. How come? If it's necessary, is there a way you can 
define a class instead that will store this state and the methods that 
depend on it without requiring globals? "

I've revised postProcessor to use a class called PostClass. PostClass 
encompases the $minified, $includes, and $excludes variables and the 
functions that operate on them (as suggested). Mostly this just required 
me to move some code from the newly created BuildUtilities into this 
class (and a move of the tests).

Code is checked in and ready for review.

Laurel

-- 
Laurel A. Williams
Adaptive Technology Resource Centre
University of Toronto