Return inner promise in createConnectionManager

[cvium]

Changes
The require didn't return anything which caused a race condition wherein the connection manager wouldn't always be loaded before execution continued after calling createConnectionManager. I've added a return to fix it.
Issues
Fixes this:

site.js?v=10.2.2:1587 Uncaught (in promise) ReferenceError: ConnectionManager is not defined
    at site.js?v=10.2.2:1587
    at Object.execCb (alameda.js?v=10.2.2:391)
    at defineModule (alameda.js?v=10.2.2:145)
    at main (alameda.js?v=10.2.2:346)
    at callDep (alameda.js?v=10.2.2:291)
    at waitForDep (alameda.js?v=10.2.2:177)
    at alameda.js?v=10.2.2:345
    at Array.forEach (<anonymous>)
    at main (alameda.js?v=10.2.2:343)
    at takeQueue (alameda.js?v=10.2.2:84)

[vitorsemeano]

Very nice, one more problem solved, sorry if i didn't get that one, i am still somewhat fresh to this AMD approach.