Enable input.blur() in domita

1. domita has methods for focus() and blur(), but doesn't
make blur() callable.  This change makes blur() callable.

2. DomitaTest didn't clean up after a test failure.
A test failure would make subsequent tests fail to start.
This change adds cleanup.

[ihab.awad, 2009-07-08 05:53:09]

http://codereview.appspot.com/92041/diff/1/4
File src/com/google/caja/plugin/domita.js (right):

http://codereview.appspot.com/92041/diff/1/4#newcode2530
Line 2530: ['getValue', 'setValue', 'focus', 'blur',
eep! Thanks!

http://codereview.appspot.com/92041/diff/1/3
File tests/com/google/caja/plugin/DomitaTest.java (right):

http://codereview.appspot.com/92041/diff/1/3#newcode93
Line 93: void runPage_1(String pageName) {
Please rename to something descriptive, like "runPageContents" or something. Or
rename runPage to something else. Or something.... :)

http://codereview.appspot.com/92041/diff/1/2
File tests/com/google/caja/plugin/domita_test_untrusted.html (right):

http://codereview.appspot.com/92041/diff/1/2#newcode2283
Line 2283: function testFocusBlur() {
Please add a TODO for us to find some way to determine that it has *actually*
focused.

[ihab.awad, 2009-07-08 15:49:38]

LGTM