fixed issue with widgets not loading nls

Fixed issues with the widgets referencing the nls code file before it
was loaded. Also started fixes for coding standard.
Merge branch 'master' of https://github.com/Esri/solutions-webappbuilder-widgets
Fixed Manifest files on Imagery Widgets so Widgets will load.

Fixed Manifest files on Imagery Widgets so Widgets will load.
Typo in Readme
Merge pull request #34 from conklinbd/master

Merge AWAB 1.0 fixes for Image Widgets and Readme