Change Zeppelin Library Spec
[LIBNAME]/[LIBNAME].erb -> [LIBNAME]/zql.erb

ZEPPELIN-27
[Documentation] GA code on Zeppelin homepage updated to Universal Analitics with enanced sampling to get SiteSpeed report.
[Documentation] GA code updated to track downloads by version number
Merge branch 'gh-pages' of github.com:alexander-bzz/zeppelin into gh-pages