Make resource "kind" determination more obvious

By adding the "kind" to the base resource, it is still identifiable even
when the resource specific elements are gone in calls that are only
defined in the base resource. This is also more logical for building
resources!

This also switches resources to use an Init() method. This will be
useful for when resources have more complex initialization to do.

exec.go

@@ -40,12 +40,9 @@ type ExecRes struct {
 }
 
 func NewExecRes(name, cmd, shell string, timeout int, watchcmd, watchshell, ifcmd, ifshell string, pollint int, state string) *ExecRes {
-	// FIXME if path = nil, path = name ...
-	return &ExecRes{
+	obj := &ExecRes{
 		BaseRes: BaseRes{
-			Name:   name,
-			events: make(chan Event),
-			vertex: nil,
+			Name: name,
 		},
 		Cmd:        cmd,
 		Shell:      shell,
@@ -57,10 +54,13 @@ func NewExecRes(name, cmd, shell string, timeout int, watchcmd, watchshell, ifcm
 		PollInt:    pollint,
 		State:      state,
 	}
+	obj.Init()
+	return obj
 }
 
-func (obj *ExecRes) Kind() string {
-	return "Exec"
+func (obj *ExecRes) Init() {
+	obj.BaseRes.kind = "Exec"
+	obj.BaseRes.Init() // call base init, b/c we're overriding
 }
 
 // validate if the params passed in are valid data