Grand test fixup (#138)

* start fixing up tests

* fix up tests + automate with drone

* fiddle with linting

* messing about with drone.yml

* some more fiddling

* hmmm

* add cache

* add vendor directory

* verbose

* ci updates

* update some little things

* update sig

vendor/github.com/go-pg/pg/v10/internal/context.go

@@ -0,0 +1,26 @@
+package internal
+
+import (
+	"context"
+	"time"
+)
+
+type UndoneContext struct {
+	context.Context
+}
+
+func UndoContext(ctx context.Context) UndoneContext {
+	return UndoneContext{Context: ctx}
+}
+
+func (UndoneContext) Deadline() (deadline time.Time, ok bool) {
+	return time.Time{}, false
+}
+
+func (UndoneContext) Done() <-chan struct{} {
+	return nil
+}
+
+func (UndoneContext) Err() error {
+	return nil
+}