[TIMOB-15608] Fixed bug with empty or non-existant option values. Also fixed bug with invalid options not being prompted for when autoSelectOne is set.
Merge pull request #70 from appcelerator/timob-15608

[TIMOB-15608] Fixed bug with empty or non-existant option values. Also f...
Merge branch 'master' of github.com:appcelerator/titanium