Revert: string switch, as the build server doesn't have Java 7 yet.

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9680 5f5364db-9458-4db8-a492-e30667be6df6
Revert: mandate Java 7 as a minimum requirement, till the build server has one.

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9681 5f5364db-9458-4db8-a492-e30667be6df6
use java encoding instead of being UTF-8 dependent.

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9682 5f5364db-9458-4db8-a492-e30667be6df6
revert fix for #1632

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9683 5f5364db-9458-4db8-a492-e30667be6df6
use the more precise type here

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9684 5f5364db-9458-4db8-a492-e30667be6df6
WebClient.closeAllWindows() now kills the thread, if join does not succeed. this might happen, if one of the javascript jobs runs in an endless loop.
WebClient.closeAllWindows() now stops the JS thread also of some onunload handler opens new windows or refreshes iframes.


git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9685 5f5364db-9458-4db8-a492-e30667be6df6
force build

git-svn-id: svn://svn.code.sf.net/p/htmlunit/code/trunk@9686 5f5364db-9458-4db8-a492-e30667be6df6