Moved all Eclipse specific files into res/ide-support/eclipse.

Moved all Eclipse specific files into res/ide-support/eclipse.
Removed spaces from launch target filenames.
Corrected launch targets to run in output/build instead of root directory (still not sure if they're a good idea)
Added an Ant ide-eclipse target to prepare the working copy to be built with Eclipse and create Eclipse project files.
Updated the Building docs to document new Eclipse setup method.
Added descriptions of how to configure Eclipse to respect Tomcat coding conventions to the Building guide.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1002073 13f79535-47bb-0310-9956-ffa450edef68