Add .travis.yml
Make doctests not fail when libmemcached is too old to contain
ServerDown
Merge branch 'doctests_no_ServerDown' into travis
.travis.yml: Remove pypy, because it's failing
Use memcached_instance_st*  instead of memcached_server_instance_st for
libmemcached-1.0.17

Fixes GH-133.
Merge branch 'travis' into libmemcached-1.0.17_memcached_instance_st
Merge pull request #135 from msabramo/libmemcached-1.0.17_memcached_instance_st

Use memcached_instance_st*  instead of memcached_server_instance_st for libmemcached-1.0.17