Close the connection if a stream management client fails to respond to
an acknowledgement request within 60 seconds. This number of seconds
can be changed with the new "ack_timeout" option, and the mechanism can
be disabled by specifying 'infinity'.
As a side effect of this change, a new acknowledgement is no longer
requested before the response to the previous request is received.
Use dynamic Rebar configuration
Make iconv dependency optional
Disable transient_supervisors compile option
Add hipe compilation support
Only compile ibrowse and lhttpc when needed
Make it possible to generate an OTP application release
Add --enable-debug compile option
Add --enable-all compiler option
Add --enable-tools configure option
Add --with-erlang configure option.
Add --enable-erlang-version-check configure option.
Add lager support
Improve the test suite