1/3 Updated Makefile to allow VENDOR flag (adds -vendor to version string)

2/3 Added vendor/ dir to lock down dependent pkg versions.
The author of git.schwanenlied.me/yawning/{chacha20,newhope,kyber}.git has copied
their repos to gitlab.com/yawning/ but some imports of chacha20 from newhope still
inconsistently refer to git.schwanenlied.me/, breaking build.
Licenses for chacha20 also changed from CC0 to AGPL, which may or may not be an
issue. Until the two aforementioned issues are resolved, locking to last-good
versions is probably the best way forward for now.

To build with vendored deps, use make VENDOR=1 clean all

3/3 Moved body of CI push script into bacillus/

vendor/gopkg.in/hlandau/passlib.v1/abstract/errors.go

@@ -0,0 +1,15 @@
+// Package abstract contains the abstract description of the Scheme interface,
+// plus supporting error definitions.
+package abstract
+
+import "fmt"
+
+// Indicates that password verification failed because the provided password
+// does not match the provided hash.
+var ErrInvalidPassword = fmt.Errorf("invalid password")
+
+// Indicates that password verification is not possible because the hashing
+// scheme used by the hash provided is not supported.
+var ErrUnsupportedScheme = fmt.Errorf("unsupported scheme")
+
+// © 2014 Hugo Landau <hlandau@devever.net>  MIT License