[MODCLUSTER-344] No pings when using HTTP connector in default configuration
[MODCLUSTER-344] Update documentation for EnableOptions
[MODCLUSTER-344] Rework EnableOptions to be of flag(ish) type (On/Off)
[MODCLUSTER-344] Use AP_INIT_RAW_ARGS to avoid compilation warning
Merge pull request #70 from rhusar/MODCLUSTER-344_http_pings

MODCLUSTER-344 No pings when using HTTP connector in default configuration