Removed pipeline from WindowsGL solution.
Added rebuild flag to MGCB.
Normalizing incoming paths to PipelineManager.
Better exceptions in AddAssembly().
Starting to remove .contentproj support from MGCB.
CommandLineProcessor now supports methods as command line arguments.
Renamed Options to BuildContent.
Merge remote-tracking branch 'upstream/develop3d' into mgcb
Fixed bad row calculations.
Merge remote-tracking branch 'upstream/develop3d' into mgcb2
Merge branch 'mgcb' into mgcb2
Fixed some path issues.
We now rebuild content if the number of processor parameters changes.
Added basic processor parameter parsing.
Replaced NameAttribute and RequiredAttribute with CommandLineParameterAttribute.
Fixed CommandLineParser namespace.
Added time elapsed to build output.
Added /rebuild option back and a /clean option.
Changed all the command line parameters to lowercase.
Removed ContentProject.cs.
Made the content list private.
Added some TODOs.
Made some of the lists readonly.
Moved most the console output to Main().
Added response/command file support.
Merge pull request #1236 from SickheadGames/mgcb2

MGCB Improvements