Add undefined check

Signed-off-by: Ryan Chen <ryan.chen@turn.com>
Merge pull request #163 from turn/personal/rchen/fix-jasmine-error

Add undefined check for jasmine tests
Removed southamerica region exceptions and just lazy load both northamerica and southamerica for the 'America' region - Issue #157
Merge pull request #164 from Enlighten/master

Load both north and south America Olson files for the 'America' region
remove debug info from preparsed json
Merge pull request #165 from alim-akbashev/master

remove debug info from preparsed json
Merge branch 'master' into v0.4