- Added fail directory for FAIL* testing
- Lots of CMake targets to automate all aspects of FAIL* testing:
  Tracing, Objdump-Import, Region-Mapping, Importing, Pruning, Server, Client
- fail-run.py to run one or #cores FAIL* clients, optionally FAIL* server as well
- mapper.py to extract allowed text/data/stack regions from elf for importers
- distributes clients to other hosts when PARALLEL_SSHFILE is set
- manlobbi.slf SSH-login file for manlobbi for parallel

Usage:
- Use coredos_fail_test(TESTNAME) instead of coredos_test(TESTNAME) in CMakeFiles
- Run FAIL* server+client in one shot with make fail-TESTNAME-TYPE
  TYPE names importer type: mem, regs, ip or jump

Some relevant CMake-Variables:
FAIL_TOOLS_DIR: directory where FAIL* tester+tracing binaries are, defaults to
  /proj/i4danceos/coredos/cored-tester
FAIL_DBNAME/FAIL_HOSTNAME/FAIL_USERNAME: override ~/my.cnf if needed
FAIL_NICE: Set client nice level
FAIL_VARIANT: Variant name, benchmark name derived from target and importer type
PARALLEL_SSHFILE: SSH login file to distribute FAIL* clients to

closes #83

Change-Id: I22f92944296876e54ce917b5188808e120c8eb2c