update travis

Change-Id: I0cd20f455cbc60a378156488649a72d14d66c88b
Add tests for scribunto integration and implementation

Change-Id: I999bd41c3fdee94fef52d260903998aa11604544
Revert "Eliminate need to create pages in ReferencedPagesFinderTest"

This reverts commit 93a819368b8ca2c61bcd110d7c356f4eed256f6a.
Eliminate need to create pages in ReferencedPagesFinderTest