Improve building in Eclipse

I believe I was able to improve the building of WPI Suite so it builds more consistently on different machines, and that it only requires clicking "Build All" once. I also included the Tomcat binary files, so that way everyone can be on the same version without issue. I tested using this Tomcat copy, and it worked under Mac OS X 10.9 and Windows 7 64-bit. As far as I can tell, no regressions were made. I have not tested this under Linux.

In short:
-Standardized Ant Builders across all WPI Suite projects
-Reorganized Java Build Path to improve compilation
-Included Tomcat