Release 0.7.1

b7969df user: change authorized_keys file atomically
d3e5923 db/conn: update year in copyright header
274d80b api: add new handler to update key
c7f103c user/key: add function to update key
129ff92 user: fix test
43b8208 travis: remove -x from go commands
6617ba6 db: make name and username unique together in the key collection
2959498 travis: fix build
7fa9abc travis: use the new infrastructure
d8ab892 Makefile: ignore failures on go get
7508aa1 Merge pull request #191 from scorphus/master
0ba5cad docs/source/api: adjust docs regarding how emails are returned
08288c0 api: fix tests
dae9b79 hook: fix tests
c54de9e etc: fix git:bare:location in sample config file
9e36127 docs/source/install: update documentation
2ffc4de docs/source: fix another warning by adding docs to toctree
12166de docs/sources/index: fix sphinx warning
05b7f1b etc/gandalf: point to the proper bin-path
e7ae9cc Godeps: update config
51f18ee Godep: update dependency on tsuru