Working on #91 and #92. Still have a lot of failing tests. Work in progress...
Merge branch 'issue-110-exclude-containers' into issue-92-91-improve-units-in-crawlspec

Conflicts:
	core/src/test/java/com/crawljax/core/IFrameSuper.java
	core/src/test/java/com/crawljax/core/PopUpTest.java
	core/src/test/java/com/crawljax/core/largetests/LargeTestSuper.java
Merge pull request #130 from crawljax/issue-92-91-improve-units-in-crawlspec

Issue 92 91 improve units in crawlspec