* [test] streams-write tests the relative key path.
+ gitignore *.log files
+ new usage Subkey.path(aPath) to create a new Subkey object
  * Subkey.path() return the Subkey object's path.
* deprecated.property is used incorrectly
+ inject the deprecate.assignProperty to assign the deprecated property easily.
Merge branch 'release/7.8.0'