Refactor InEpsilon() to use InDelta().
Refactor InEpsilon() to use InDelta().

hpcloud/testify,wallclockbuilder/testify,Fiery/testify,outrightmental/go-testify,mesosphere/testify,embroker/testify,yaoshipu/testify,dvln/testify,danielchatfield/testify,codygibb/testify,stretchr/testify,grepory/testify,ifraixedes/testify,yxd-hde/testify,insionng/testify,MCProHosting/testify,stretchr/testify,allgeek/testify,csquared/testify,bmatsuo/testify,glittershark/testify,andymoon/testify,pki-io/testify,AnuchitPrasertsang/testify,irnnr/testify,betable/testify,brahmaroutu/testify,yxd-hde/testify,multiplay/testify,ernesto-jimenez/testify,davelondon/ktest,ANPez/testify,liudhzhyym/testify,hawx/assert,roth1002/testify