Clear up -Wunused-but-set-variable warnings
Fix uninitialized value error in main() in stress-tests.c https://fedorahosted.org/sssd/ticket/732
Use POPT_TABLEEND to close option table
Add --with-test-dir option to configure All 'make check' tests will chdir() into this directory before running the suite. This provides the option of having temporary files generated in a tmpfs or ramdisk
Rename server/ directory to src/ Also update BUILD.txt