improve status bar handling, fix issue #18
improve status bar handling, fix issue #18

fix: encode status bar messages with .encode('ascii', 'replace')
feature: show the number of errors and current error at beginning of status

lunixbochs/sublimelint,SublimeLinter/SublimeLinter3,smanolloff/SublimeLinter3,Raynos/SublimeLinter3-raynos,ikappas/SublimeLinter3,paulirish/SublimeLinter3,jasonrhaas/SublimeLinter3,SublimeLinter/SublimeLinter3,paulirish/SublimeLinter3,zenlambda/SublimeLinter3,ikappas/SublimeLinter3,zenlambda/SublimeLinter3,simonzack/SublimeLinter3,simonzack/SublimeLinter3,smanolloff/SublimeLinter3,lunixbochs/sublimelint,jasonrhaas/SublimeLinter3