[skip ci][resolves #29] Encourage passing constructors to getStore and waitFor instead of strings
[resolves #34] Allow param to be passed to emitChange events; Default to the store instance instead of the store class
Merge pull request #37 from yahoo/storeClass

[skip ci][resolves #29] Encourage passing constructors to getStore and waitFor instead of strings
Merge pull request #38 from yahoo/emitParam

[resolves #34] Allow param to be passed to emitChange events; Default to...
Fix contributing link
Add npm badge
Fix spacing between badges
Add error for dispatching within a dispatch
Merge pull request #40 from yahoo/noDispatchInDispatch

Add error for dispatching within a dispatch
0.2.8
Add more info to dispatch error