HtmlButton.getAttribute("type") now returns the correct value if no type was specified; test migrated and fixed

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9294 5f5364db-9458-4db8-a492-e30667be6df6
HttpWebConnection: set socket timeout also


git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9295 5f5364db-9458-4db8-a492-e30667be6df6
test migrated

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9296 5f5364db-9458-4db8-a492-e30667be6df6
minor code optimization

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9297 5f5364db-9458-4db8-a492-e30667be6df6
IE11 progress

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9298 5f5364db-9458-4db8-a492-e30667be6df6
IE11 progress

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9299 5f5364db-9458-4db8-a492-e30667be6df6