Truffle since release 2.0.8 delays the initialization of the global variable web3
after the load event, so this variable
is not available during angular bootstrap, inside a .config() section, inside providers and neither inside the controllers
initialized at load time and related injected services.
Accessing to the web3 variable inside a setTimeout() call could be a solution for simple projects but the only way to be sure that web3 is initialized is to postpone the angular bootstrap.
Looks at the code below: