add byte order mark detection to VW parser
eliminated isdigit call
fix empty line issue
bug fixes from Nick for windows compile
minor wording tweak
Merge branch 'master' of git://github.com/JohnLangford/vowpal_wabbit
fix initialization order bug in csoaa
warnings for bad labels to multiclass
Merge branch 'master' of git://github.com/JohnLangford/vowpal_wabbit
fixing searn bugs that john introduced :P