replaced isEmpty with length==0 for Android JRE compatibility; see bug #85

git-svn-id: svn+ssh://svn.code.sf.net/p/htmlcleaner/code/trunk@248 482c6979-392e-0410-9d6c-a8d33d214f2b
Removed dependency on Ant from test case

git-svn-id: svn+ssh://svn.code.sf.net/p/htmlcleaner/code/trunk@249 482c6979-392e-0410-9d6c-a8d33d214f2b
Added thread safety test (thanks to Tobias for the contribution)

git-svn-id: svn+ssh://svn.code.sf.net/p/htmlcleaner/code/trunk@250 482c6979-392e-0410-9d6c-a8d33d214f2b
Re-implemented thread-safe operation (see bug #86)

git-svn-id: svn+ssh://svn.code.sf.net/p/htmlcleaner/code/trunk@251 482c6979-392e-0410-9d6c-a8d33d214f2b
Reverted IgnoreQuestAndExclaim to default = true as per documented behaviour. See bug #84.

git-svn-id: svn+ssh://svn.code.sf.net/p/htmlcleaner/code/trunk@252 482c6979-392e-0410-9d6c-a8d33d214f2b
Merge branch 'master' into github_master