fixing #408
fixing #397 again.
fix for #381 squashed/cleaned.
Merge pull request #409 from crawljax/fix408

fixing #408
Merge pull request #410 from crawljax/fix381cleaned

fix for #381 squashed and cleaned.
Merge pull request #411 from crawljax/fix397

fix for  #397
fixing #406
rethrowing the error without hiding.
Merge pull request #412 from crawljax/fix406

Fix for #406
Preparing the 4.0 branch
Removed the deprecated DomNotifier plugin
Removed deprecated `getDom` method
Removed unused configurations

The configurations were not used anywhere in the project. Removing
them...
Removed all Oracle comparators

This commit removes all references to Oracle comparaters. They are
removed because:

1. They do not adhere to the plug-in architecture.
2. They are not configurable enough
3. They were not used consistently throughout the application
4. They weren't thread safe
Implemented the new DOM strippers

The idea is that you define zero or more of these strippers. They do not
have to produce a valid DOM, but they're there so you can influence how
DOMs are compared. StateVertexes are compared on the equals function of
these stripped doms so the more alike you make them, the less states
you'll have at the end of your crawl.
Merge branch 'crawljax-4.0' of https://github.com/erwinvaneyk/crawljax into crawljax-4.0

Conflicts:
	core/src/main/java/com/crawljax/browser/EmbeddedBrowser.java
	core/src/main/java/com/crawljax/browser/WebDriverBackedEmbeddedBrowser.java
	core/src/main/java/com/crawljax/browser/WebDriverBrowserBuilder.java
	core/src/main/java/com/crawljax/core/Crawler.java
	core/src/main/java/com/crawljax/core/configuration/CrawljaxConfiguration.java
	core/src/main/java/com/crawljax/core/state/StateMachine.java
	core/src/main/java/com/crawljax/di/CoreModule.java
	core/src/test/java/com/crawljax/core/CrawlerTest.java
	core/src/test/java/com/crawljax/core/largetests/LargeTestBase.java
	core/src/test/java/com/crawljax/core/state/StateMachineTest.java
	dom-strippers/src/main/java/com/crawljax/domcomparators/DomStripper.java
	dom-strippers/src/main/java/com/crawljax/domcomparators/ValidDomStripper.java
	test-utils/pom.xml
Rebase from Crawljax/Crawljax