Fix xpcshell test dir
report.html: add link to commit
report.html: remove commit author
Add run_to_file sub
TBBTestSuite::Common: add get_nbcpu

Get the number of cpu by looking at /proc/cpuinfo
Really set fail_type error as default on all tests
Add build_firefox test
Rename browser testsuitetype to browserunit
Set BrowserBundleTests.pm testsuite type to 'browserbundle'
Move test_types, pre_tests, post_tests outside tbbinfos
VirusTotal.pm: only read api key file when used
Fix testsuite type for browserbundle
tor_bootstrap: add content of the torrc file to the test details
tor_fte: remove specific case for 3.6.x versions

All current TBB versions now use the same fteproxy path.
tor_bootstrap: include logs directly in the report
Turn some readelf_* tests into warnings

Make readelf_RELRO, readelf_stack_canary, readelf_no_rpath tests produce
warnings rather than errors on failure.
report.txt: display fail type
BrowserUnitTests: add diff with previous results