Merge pull request #15982 from gtorodelvalle/contacts-bug-966622-importing-from-vcf-file

Bug 966622 - [contacts] import hangs at N-1 of N contacts imported from vcf file on memory card/sd card
(cherry picked from commit 9e7058e2a521ebfd8cd84507663213aaf2063159)

Conflicts:
	apps/communications/contacts/js/utilities/vcard_parser.js
	build/jshint/xfail.list