sql: fix connection leak

vendor: update glide dependencies

manager: migrate to dockertest.v3, fix mysql issue and introduce migr…

…ation (ory#43)

store: add redis policy store (ory#40)

Signed-off-by: Son Dinh <[email protected]>

manager/sql: replace json with text for better interop

manager: fix sql default value

all: wrap errors

0.3.0 (ory#35)

* manager: remove posgres-specific ql and add mysql support
* travis: add go 1.7 to build matrix
* docs: improved the docs
* travis: use go 1.7 only to support test groups

vendor: add semver to glide (ory#31)

vendor: glide semver and remove gopkg