Support for loading recipes and roles from modules

Modules are located under `modules` folder. They will be copied on
deploy as well.

An example structure:

```
sample
├── files
├── install.sh
├── modules
│   └── another
│       ├── files
│       ├── install.sh
│       ├── README.md
│       ├── recipes
│       └── roles
│           └── web.sh
├── README.md
├── recipes
└── roles
```

Roles and recipes will be available for your project to access it with
the commited functions

kickstart/recipes/kickstart/module.sh

@@ -0,0 +1,14 @@
+kickstart.module.apply_role() {
+  kickstart.module.apply_ $1 $2 roles
+}
+
+kickstart.module.apply_recipe() {
+  kickstart.module.apply_ $1 $2 recipes
+}
+
+kickstart.module.apply_() {
+  local cur_dir=`pwd`;
+  cd modules/$1
+  source $3/$2.sh
+  cd $cur_dir
+}