delete the properties sample
the periodic cache wipe problem

wiping caches periodically creates new SSAInstructions, but SSA
instructions are compared using object identity…. so we get equal
objects that are not equal… figuring this out is not a nice way to
spend 3 hours
missing VectorKill println method

modeled after the VectorGen method
Merge branch 'refs/heads/ibm'
Merge remote-tracking branch 'origin/master'
ignored DS_store
added the CallContext and AbstractCallContext that I've created about a year ago.

have to see whether I still think this is worth put in the WALA core
Revert "delete the properties sample"

This reverts commit b5e886276196efd15e081683884e341caec62a68.
made util, shrike, and core build with sbt
moved wala multi-project sbt build to workspace because sbt doesn't read .scala files from dependent project
delete sbt from wala root
made sbt see the wala project as java projects, not scala; fixed the paths so that they import cleanly in eclipse
fixed eclipse compilation problems
Merge branch 'master' of git://github.com/wala/WALA

Conflicts:
	com.ibm.wala.core/.project
	com.ibm.wala.core/src/com/ibm/wala/dataflow/IFDS/TabulationSolver.java
	com.ibm.wala.core/src/com/ibm/wala/dataflow/IFDS/VectorKillFlowFunction.java
	com.ibm.wala.util/src/com/ibm/wala/fixpoint/IntSetVariable.java
refactoring: move inner interface IProgressMonitor to its own file
add /dat directory as sbt resource directory
make some fields public
Merge branch 'master' of git://github.com/wala/WALA
bla
new test for a second problem related to interfaces