Backed out 4c26321be573.
Only include bytecode when --keep-bytecode options is specified.
Otherwise it may generate a huge log and Jenkins may choke on it.
Support for deployable-package building.
Over time, move stuff which helps to generate makefiles, packages, nullsoft installers
etc. to here.
Also, scripts to run testsuites and convert to hudson/jenkins readable formats are found
in subdirectories here.