IE11 progress

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9369 5f5364db-9458-4db8-a492-e30667be6df6
IE11 progress

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9370 5f5364db-9458-4db8-a492-e30667be6df6
migrate some tests and fix our ff impl

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9371 5f5364db-9458-4db8-a492-e30667be6df6
tests migrated

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IE11 progress

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ConcurrentModificationException in WebWindowImpl.destroyChildren() [issue 1602]

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9374 5f5364db-9458-4db8-a492-e30667be6df6
test migrated - ie11 progress

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9375 5f5364db-9458-4db8-a492-e30667be6df6
one more test migrated

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two more tests migrated

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IE11 progress

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IE11 progress

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one more test migrated, IE11 progress

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tests migrated, IE11 progress

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