Switching Ruby 1.8.7 to 1.9.3 to fix Travis build bug.
Switching Ruby 1.8.7 to 1.9.3 to fix Travis build bug.

JohnAlbin/normalize-scss,nabu1615/normalize-scss,webmarkelov/normalize-scss,Alexdersan/normalize-scss,justindirose/normalize-scss,npmcomponent/JohnAlbin-normalize-scss,webmarkelov/normalize-scss,JohnAlbin/normalize-scss,nabu1615/normalize-scss,Alexdersan/normalize-scss,JohnAlbin/normalize-scss,justindirose/normalize-scss