Remove ignoreErrors(), which was only used for conditionals

Hello @kylehardgrave, 

Please review the following commits I made in branch 'nick-ignore-erros'.

b4a949190329e65c339ca7501097eed0f12329e3 (2013-08-01 18:35:27 -0400)
Remove ignoreErrors(), which was only used for conditionals


R=@kylehardgrave