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.go

@@ -1,22 +0,0 @@
-package generator
-
-import (
-	"katenary/compose"
-	"regexp"
-	"strings"
-)
-
-// replaceChars replaces some chars in a string.
-const replaceChars = `[^a-zA-Z0-9_]+`
-
-// GetRelPath return the relative path from the root of the project.
-func GetRelPath(path string) string {
-	return strings.Replace(path, compose.GetCurrentDir(), ".", 1)
-}
-
-// PathToName transform a path to a yaml name.
-func PathToName(path string) string {
-	path = strings.TrimPrefix(GetRelPath(path), "./")
-	path = regexp.MustCompile(replaceChars).ReplaceAllString(path, "-")
-	return path
-}