Add space-- formatting is off

This closes #110.
Update working-log-files.en.rst

This closes #108.
Document proxy.config.stack_dump_enabled

While debugging the issues we've had with ATS, we needed to generate
core files, but by default ATS handles the SIGSEGV signal and prints
the backtrace to traffic.out. We've find out, though, that there's
a config setting that disables this behavior, allowing core files
to be generated, and decided we should add this information to the
doc as others, specially newcomers to ATS, may find it useful.

This closes #109.
stats_over_http: remove stray whitespace
ci/regression: forward command line options to configure
build: link the sslheaders test against OpenSSL
TS-3071: optionally emit JSON numbers in stats_over_http

Add a new option to emit floats, counters and integers and JSON
numbers rather than strings. Since some systems (*cough* Java) don't
deal well with uint64_t, add another option to wrap integers and
counters to int64_t.

This closes #100.
TS-3051: fix libaio error handling

The libaio API functions return -errno on error, so the error
handling needs to check the resturn code, not look at errno. Replace
calls to perror(3) with Debug(), so debug logging works correctly.
TS-3071: build fix
[TS-3069]: Adding missing files to mysql_remap build
Build with CORES=2 for now
Use common libts code to enable core dumps
[TS-3023] - Support space separated values in inline plugin parameters in remap rules
update changes
[TS-2955] - support variable expansion in set-redirect operator for header_rewrite
updating changes
[TS-3035] - fix duplicate logging on error transactions
update changes
build fix
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/trafficserver