V2 API Version Support

* Update blang/semver to allow ParseTolerant() support
* Provide helper functions for API handlers to obtain client's 'version'
  path variable focused on API endpoint tree: libpod vs. compat
* Introduce new errors:
  * version not given in path, endpoints may determine if this is a hard
    error (ErrVersionNotGiven)
  * given version not supported (ErrVersionNotSupported), only a soft
    error if the handler is going to hijack the connection
* Added unit tests for version parsing
* bindings check version on connect:
  * client <= Server API version connection is continued
  * client >= Server API version connection fails

Signed-off-by: Jhon Honce <jhonce@redhat.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/pkg/bindings/version.go b/pkg/bindings/version.go
deleted file mode 100644
index c833a644c..000000000
--- a/pkg/bindings/version.go
+++ /dev/null
@@ -1,3 +0,0 @@
-package bindings
-
-func (c Connection) Version() {}