Increase the stability of the acceptance tests on travis-ci by:

* Use waitFor* instead of see* when possible
* Wait after login for the main navigation and the content iframe
* Setting an implicite wait of 1 second to recude general timing issues

In general from time to time phantomjs stucks with:

SessionManagerReqHand - _cleanupWindowlessSessions -
Asynchronous Sessions clean-up phase starting NOW

This needs further investigation:

https://github.com/ariya/phantomjs/issues/11526

Resolves: #74379
Releases: master
Change-Id: I3465e61a1a8c1c5c2bd5a83e928599606ba28c93
Reviewed-on: https://review.typo3.org/47142


Reviewed-by: Roland Golla <rolandgolla@gmail.com>
Tested-by: Roland Golla <rolandgolla@gmail.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>