don't synchronzie constant function, closes #4

[mhhf]

Constant functions don't change the state and arn't executing a
transaction, therefore they don't need to be synchronized.

[tcoulter]

@mhhf This sounds like a good change. Can you give me corresponding contract code and Javascript code where this causes an issue, just so I can experience the problem that this fixes? Thanks!

[mhhf]

@tcoulter: here you go: https://github.com/mhhf/pudding_minierror

truffle deploy
truffle build
python -m SimpleHTTPServer 8000

[tcoulter]

Thanks! I made a comment on the other ticket that you should be using instance.query.call(). However, this change may still be a good one. Let me look into it more. Thanks for the great example!

[tcoulter]

Fixed as of latest commit! I refactored everything, so couldn't include your PR, but thanks for the help!