Update ubuntu install doc with tested release table.
Update ZTracer.sh to transparently handle ptrace protections.
Fixup dependency installer.
Auto-answer yes for ubuntu apt installs.
Move install scripts for nicer dir structure.
Made setup_pin accept optional pin installation dir for travis caching.
Fix missing import in dump_trace.
Add run trace files to .gitignore.
Really add run.trace.* to .gitignore? Pretty please?
Add travis-ci files.