Fix Tika compile error on Ubuntu 13.04 (version number interpreted as float).
Initialize Tika JVM only once per process
Remove Tika apache log from gitignore
Allow to request the shared object path from libutil.py
Defer importing tika until new process is started (for stand-alone tika)
Make Tika stand-alone; do not require installation. Also build with older glibc for compatibility. No binaries for Windows or Linux 32-bit available yet.