fixed an infinite loop in scrolling upwards when an invalid instruction is encountered
working on a new analyzer algorithm which would be more accurate


git-svn-id: http://edb-debugger.googlecode.com/svn/trunk@246 0e5a8416-ee0f-00cc-8024-a419571235d2
fixed an off by on error in IRegion "contains" code


git-svn-id: http://edb-debugger.googlecode.com/svn/trunk@247 0e5a8416-ee0f-00cc-8024-a419571235d2