small fixes

silly code in LineParser.ts
odd comment in integrity
added 2 rules to .jshintrc
fixed ansi codes in non-tty mode

fixes #59

added plain as default option value
added to CLI.ts init
added isTTY property to node.d.ts

fixed cli/style.ts method name (useStyle)
applied ES6 Set
fixed some Set iteration issues
fixed concatenated reference bundle output

fixes #60

changed Bundle to have a default eol defined
changed test to reflect starting with no bundle file
fixed bad uses of Set/Map iterator