initialize select2 widget#31

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pjpassa wants to merge 3 commits intomodlinltd:developfrom

worthwhile:feat/initialize-select2

Commits on Jun 7, 2016

Fixed select2 widgets not initializing
PJ Passalacqua
committed
fixed bad placement of initialize_select2 call
PJ Passalacqua
committed

Commits on Aug 18, 2016

Changes URL declaration to avoid deprecated pattern

hermanocabral
authored and
PJ Passalacqua
committed