Make plugin work with segment.io 3.0.0#16

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karolk wants to merge 6 commits intoarnaudbreton:masterfrom

Commits on Nov 26, 2014

Commits on Jul 22, 2015

flush the queue of pending events when analytics script is loaded. This avoid keeping events stuck in the queue until the next segmentio method call
Vince
committed
move if condition
Vince
committed

Commits on Jul 23, 2015

Merge pull request #2 from skimhub/fix/onload-callback
Vincent Comby
committed