Update README.rst
Improved benchmarker
Further benchmarker improvements
Add a 5x3 test matrix for Travis CI

python 2.6, 2.7, 3.2, 3.3, 3.4
libmemcached 0.44, 0.53, 1.0.8
_pylibmc.MemcachedError → pylibmc.Error

Fixes issue #39 (3.5 years later.)
Add test for get_multi invariant

Discussed in #158
Improve backwards compatible name

Now exists as _pylibmc.MemcachedError only (as before.)
Merge pull request #159 from p-lewis/travisci

Add a 5x3 test matrix for Travis CI