[ANN] omnifocus 2.6.0 Released

omnifocus version 2.6.0 has been released!

* home: <https://github.com/seattlerb/omnifocus>
* rdoc: <http://docs.seattlerb.org/omnifocus>

Synchronizes bug tracking systems to omnifocus.


### 2.6.0 / 2020-02-12

* 4 minor enhancements:

  * Added `of version` subcommand to print out versions for omnifocus and plugins.
  * Added config file (~/.omnifocus.yml) to exclude syncing named projects.
  * Added debug ivar to OmniFocus instead of ruby's $DEBUG (noisy!).
  * Extended `of help` subcommand to print out all known subcommands with descriptions.