Release/1.6.18

Version 1.6.18

Bug fixes

• #405 Fix searchcommands_app example
• #406 Fix mod inputs examples
• #407 Fixed issue with Streaming and Generating Custom Search Commands dropping fields that aren't present in the first row of results. More details on how to opt-in to this fix can be found here:
  https://github.com/splunk/splunk-sdk-python/blob/develop/README.md#customization [ issue#401 ]

Minor changes

• #408 Add search mode example
• #409 Add Support for authorization tokens read from .splunkrc [ issue#388 ]
• #413 Default kvstore owner to nobody [ issue#231 ]