pre-commit: auto remove unneeded trailing whitespace from Makefiles (#378)

Cleaned up some whitespace in the Makefiles

Added an Ant target type to gbuild, that can be used to call Ant to build
a deliverable. Added Ant support files that provide build infrastructure
that can be used by Java projects, including testing

Added an Ant target type to gbuild, that can be used to call Ant to build
a deliverable. Added Ant support files that provide build infrastructure
that can be used by Java projects, including testing with JUnit at
compile time, processing of external dependencies, using the IDL
toolchain (idlc, regmerge, javamaker), and general build support like
compiling into class files, building the JAR file and cleaning. These
features require Ant version >= 1.9.1.

Ported main/jurt to gbuild and this Ant infrastructure.

Patch by: me



git-svn-id: https://svn.apache.org/repos/asf/openoffice/trunk@1828636 13f79535-47bb-0310-9956-ffa450edef68

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