Incremental parser performance benchmark

This experiment requires the Java 1.5 Standard Library which can be downloaded from http://www.oracle.com/technetwork/java/archive-139210.html. The library can be extracted from the src.zip archive contained within the Java Development Kit 5.0.

After extracting the library into a folder named javastdlib5, the benchmark can be run with ./build.sh.

Afterwards, a PDF graph can be generated from the data with ./plot.py.