Markers on the map (without use of mongoose)

Functions added:
- Application loads the position of saved plants and show up on the map
- List of plants saved in the db (without css style)
- New markers

Fixing:
- Version on package.json (and install)
"bson": "^0.2.15", (Reason: mongoose didn`t work without this one)
"mongoose": "^3.8.17", (The other version (3.9.3 is still unstable)
"morgan": "^1.4.0",