maintenance realease work

- add heterogeneous collection: the check is now on inheritance and not only on the class of the object we try to add in a collection,
- add check on read-only and type with collections,
- fix bug on $db.init,
- message between systems do not invoke also the sender,
- update unit tests,
- update dev dependency and
- update readme.

Author: Erwan Carriou

README.md

@@ -14,11 +14,12 @@
 
 #### What is monoco ?
 
-It is a **4-in-1 JavaScript library**:
+It is a **5-in-1 JavaScript library**:
 
 * it is **a metamodel** that helps you to design components,
 * it is **a component factory** that creates components based on your design,
-* it is **a worflow engine** that checks at runtime if the signatures of invoked methods are compliant with your model and
+* it is **a worflow engine** that checks at runtime if the signatures of invoked methods are compliant with your model,
+* it is an **ODM (Object Document Mapper)** to manage your components as NoSQL documents and
 * it is **a micro NoSQL Database** that stores your components and can export/import them into another monoco NoSQL Database.
 
 Finally monoco helps you to design, create and store components.
@@ -89,7 +90,7 @@ $ grunt build
 To extend monoco core system or to package your own system with monoco, you will need to use grunt commands. Here are the different tasks you can use to automate tasks:
 
 ```sh
-# run server tests (from /spec/)
+# run server tests (from /test/)
 $ grunt test
 # generate the documentation (on /doc/)
 $ grunt doc

bower.json

@@ -1,6 +1,6 @@
 {
     "name": "monoco",
-    "version": "0.7.0",
+    "version": "0.6.1",
     "description": "A Model and a NoSQL Database for Components",
     "license": "GPL-3.0",
     "homepage": "https://github.com/monocojs/monoco.git",
@@ -13,6 +13,7 @@
     "keywords": [
         "mda",
         "metamodel",
+        "odm",
         "model",
         "design",
         "nosql",