Add lengthFieldLength parameter to options and config classes
Install redis - slackware platform update

- Support for Slackware 32 & 64 bit to install-redis script
XD-1582 ignore if no metadata node yet
Support spring resource URL

- Remove explicit file: prefix for XD_CONFIG_LOCATION and
XD_MODULE_CONFIG_LOCATION
Release version 1.0.0.M6
Increment version to 1.0.0.BUILD-SNAPSHOT