- fixed the tests when `SLS_IGNORE_WARNING` is set in the shell environment
- refactored the tests to clearly expose the tested input combinations (+ added the missing combination - to have a formally complete verification)
- added the `SLS_IGNORE_WARNING=*` setting to Travis builds, so that their output doesn't contain unnecessary noise about upcoming changes
1. Improve wording of documentation. Note the concrete object that will be written in its entirety
2. Expand documentation. Note a potential security risk for secrets
3. Move, without changes, the `warnIfNotFound` method because it was putting space between `getValueFromSource` and the various source type specific functions it uses
4. Implement unit tests for `warnIfNotFound`
5. Implement unit tests for `logWarning`
1. define new `logWarning` method in Error class and consolidate message formatting for consistency.
2. use new `logWarning` to inform users if a variable cannot be resolved.
1. Newly allow `${opt:}` and `${env:}` as a valid reference to the root of the option and environment settings hive, respectively
2. Write a test ensuring the above
3. Document the new capability
4. Eliminate a silly through-${self:} use example
5. Allow for the use of populateProperty in a not-in-place manner
6. Allow for the valid (albeit odd) valueToPopulate[''] case
1. Newly allow '${self:}' as a valid reference to the current serverless.yml's root
a. This allows for a more clean manner of passing names and identifiers around between projects. Particularly, this facilitates exporting values from projects so they can be used in other projects via Fn::ImportValue.
2. Write a test ensuring the above
3. Document the new capability
Example usage: https://github.com/Nordstrom/hello-retail/pull/26/files
