added 'goless and PyPy' section
Added shortname attribute to backends for better ID when benchmarking
All envs use newest gevent
benchmarks are primed properly, helps with pypy.
format of reporting totally changed, for parseability.
Added benchmark section and benchtable
Added function for writing benchtable.rst
more sorting keys
Improved error reporting.
Inserting seperator BenchmarkResults to make RST look better.
Improved seperator
rebuild benchmarks