Absolute path -> relative

Absolute paths in setup scripts will not have the desired effect...
Fix init scripts for Debian. Give up on LSB.
Allow the user to specify Meso Git URL with --repo
Extended documentation for --repo.
Use new Mesos repo URL.
Revert "Use new Mesos repo URL."

This reverts commit aa27f43737a54772b14bcb5007e192767944dbc7.
Let the move incubator be reflected in the URL.
Recognize branch or ref specs as the URL fragment.
New style of URL parsing, mostly for amusement.
Error out when fragment is given.
Fix variable referencing bugs.
Let there be Make.
Allowing specification of a nominal version.
Ignore dist tarball.
Allow checkout to be tested locally.
Add RedHat/CentOS version detection.
Preliminary support for RedHat/CentOS.
Build routines for RPMs.
These are note used at present.
Factor out initialization and configs. Add syslog.