Merge branch 'release/1.6.1' into develop
1. Added "__tag__" key to exposed event to recognize.
2. Removed "var" from variable declaration in script wrapper.
3. Added error logging around missing response or improper return values from scripts
Merge branch 'develop' of github.com:dreamfactorysoftware/lib-php-common-platform into develop
rp
Merge branch 'release/1.6.2'