Fix I18n.enforce_available_locales warning
Fix I18n.enforce_available_locales warning

The warning message was:

  [deprecated] I18n.enforce_available_locales will default to true in
  the future. If you really want to skip validation of your locale you
  can set I18n.enforce_available_locales = false to avoid this message.

plribeiro3000/shoulda-matchers,AlexVPopov/shoulda-matchers,NafaaBout/shoulda-matchers,biow0lf/shoulda-matchers,plribeiro3000/shoulda-matchers,AlexVPopov/shoulda-matchers,timoschilling/shoulda-matchers,NafaaBout/shoulda-matchers,guialbuk/shoulda-matchers,stanchan/shoulda-matchers,taichiman/shoulda-matchers,plribeiro3000/shoulda-matchers,cheshire-cat/shoulda-matchers,raysrashmi/shoulda-matchers,cheshire-cat/shoulda-matchers,PikachuEXE/shoulda-matchers,maurogeorge/shoulda-matchers,NafaaBout/shoulda-matchers,timoschilling/shoulda-matchers,reacuna/shoulda-matchers,reacuna/shoulda-matchers,AlexVPopov/shoulda-matchers,cheshire-cat/shoulda-matchers,alejandrogutierrez/shoulda-matchers,thewatts/shoulda-matchers,guialbuk/shoulda-matchers,guialbuk/shoulda-matchers,biow0lf/shoulda-matchers,taichiman/shoulda-matchers,taichiman/shoulda-matchers,raysrashmi/shoulda-matchers,guialbuk/shoulda-matchers,awmichel/shoulda-matchers,stanchan/shoulda-matchers,stanchan/shoulda-matchers,taichiman/shoulda-matchers,awmichel/shoulda-matchers,AlexVPopov/shoulda-matchers,thewatts/shoulda-matchers,raysrashmi/shoulda-matchers,timoschilling/shoulda-matchers,reacuna/shoulda-matchers,alejandrogutierrez/shoulda-matchers,alejandrogutierrez/shoulda-matchers,thoughtbot/shoulda-matchers,thewatts/shoulda-matchers,maurogeorge/shoulda-matchers,maurogeorge/shoulda-matchers,biow0lf/shoulda-matchers,timoschilling/shoulda-matchers,reacuna/shoulda-matchers,thoughtbot/shoulda-matchers,awmichel/shoulda-matchers,NafaaBout/shoulda-matchers,raysrashmi/shoulda-matchers,thoughtbot/shoulda-matchers,awmichel/shoulda-matchers,biow0lf/shoulda-matchers,stanchan/shoulda-matchers,thoughtbot/shoulda-matchers,plribeiro3000/shoulda-matchers,thewatts/shoulda-matchers,cheshire-cat/shoulda-matchers,alejandrogutierrez/shoulda-matchers