if multiple events, return array

[ewingrj]

This fixes a bug where if a transaction emitted multiple of the same
events, the transactionReceipt only returned 1 of them.

We now return an object for the event if there is only 1. If there are
multple of the same events, then we return an array of event objects

[frozeman]

It would make it really hard to reason, as you sometimes you get arrays and other times you get objects. But sadly i have no better option either.
Please also update the docs: http://web3js.readthedocs.io/en/1.0/web3-eth-contract.html#id21
In the example you can simple showcase it by adding

...
"MyMultipleEvent": [{...},{...}] // if multiply of the same event, it comes as array

For the test, please instead of altering an existing one, add a new one instead.

Thanks so much for your contribution!

[coveralls]

Coverage decreased (-0.02%) to 85.192% when pulling 1d9c400 on perissology:logs into f5bc2ba on ethereum:1.0.

[coveralls]

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[coveralls]

Coverage decreased (-0.2%) to 85.145% when pulling 92f6ecf on perissology:logs into f3fc88a on ethereum:1.0.

[coveralls]

Coverage decreased (-0.2%) to 85.145% when pulling a36bf50 on perissology:logs into f3fc88a on ethereum:1.0.

[coveralls]

Coverage decreased (-0.2%) to 85.145% when pulling a36bf50 on perissology:logs into f3fc88a on ethereum:1.0.

[coveralls]

Coverage decreased (-0.02%) to 85.15% when pulling 5063359 on perissology:logs into d6c656a on ethereum:1.0.

[coveralls]

Coverage decreased (-0.02%) to 85.295% when pulling 34dde09 on perissology:logs into e633406 on ethereum:1.0.