Added assertError, assertRegexp, and assertRegexps to PluginTestCase
Added assertError, assertRegexp, and assertRegexps to PluginTestCase

Ban3/Limnoria,haxwithaxe/supybot,kblin/supybot-gsoc,jeffmahoney/supybot,frumiousbandersnatch/supybot-code,raboof/supybot,ProgVal/Limnoria-test,ProgVal/Limnoria-test,buildbot/supybot,Ban3/Limnoria,mazaclub/mazabot-core,mazaclub/mazabot-core,prashantpawar/supybot-rothbot