Added support for newlines in string literals

[theangrydev]

Fixes #843

[codecov-commenter]

Codecov Report

Merging #849 (223f0d9) into master (1d44be3) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #849   +/-   ##
=========================================
  Coverage     87.30%   87.30%           
  Complexity      862      862           
=========================================
  Files            79       79           
  Lines          3079     3079           
  Branches        437      437           
=========================================
  Hits           2688     2688           
  Misses          263      263           
  Partials        128      128           

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[coveralls]

Coverage remained the same at 91.458% when pulling 223f0d9 on trafficparrot:master into 1d44be3 on jknack:master.