Feat cronjob (#23)

Make possible to declare cronTabs inside docker-compose file.

⇒ Also, add multiple compose file injection with `-c` arguments 

⇒ Also, fixes “ignore depends on” for same pod 

⇒ Also fixes
 
* fix [Be able to specify compose.yml files and its override #21](https://github.com/metal3d/katenary/issues/21)
* fix [Be able to ignore ports to expose in a katenary.io/ports list #16](https://github.com/metal3d/katenary/issues/16)

And more fixes… (later, we will use branches in a better way, that was a hard, long fix process)

generator/utils_test.go

@@ -1,14 +0,0 @@
-package generator
-
-import (
-	"katenary/compose"
-	"testing"
-)
-
-func Test_PathToName(t *testing.T) {
-	path := compose.GetCurrentDir() + "/envéfoo.file"
-	name := PathToName(path)
-	if name != "env-foo-file" {
-		t.Error("Expected env-foo-file, got ", name)
-	}
-}