Fixed some issues and inconsistencies with the authors in the statistics web op.

Backported from 4c0c45be20ef69d2167ca35529ba255d5dc280b3
Reverted gzip compression for some remote requests.

The compression was causing an issue in some cases such as
cloning from the mac command line, or geoserver to geoserver
repo communication.  Commenting it out so that geogit remains
functional in those cases.

Backported from 56742f22e9c4def9445ad0ba3fb4e54d1eb2a76d.