Abandoned plugins looking for a new maintainer

The following plugins have been reported as abandoned by their maintainer and are looking for someone to adopt them. If you want to take over maintenance of one, please get in touch in the linked ticket!

Plugin	Abandonment ticket
Active Filters	https://github.com/OctoPrint/plugins.octoprint.org/issues/711
Autocalibration	https://github.com/OctoPrint/plugins.octoprint.org/issues/800
Cost estimator	https://github.com/OctoPrint/plugins.octoprint.org/issues/608
Filament Sensor Revolutions	https://github.com/OctoPrint/plugins.octoprint.org/issues/995
Filetypes	https://github.com/OctoPrint/plugins.octoprint.org/issues/796
Flashforge/Dremel/PowerSpec Printer Support	https://github.com/OctoPrint/plugins.octoprint.org/issues/1085
Full-featured Slicer	https://github.com/OctoPrint/plugins.octoprint.org/issues/911
GcodeSuperLaserController	https://github.com/OctoPrint/plugins.octoprint.org/issues/961
Growl	https://github.com/OctoPrint/plugins.octoprint.org/issues/624
OctoPrint-Thingiverse	https://github.com/OctoPrint/plugins.octoprint.org/issues/1082
PrintJobHistory	https://github.com/OctoPrint/plugins.octoprint.org/issues/1222
SpoolManager	https://github.com/OctoPrint/plugins.octoprint.org/issues/1213
TemperatureFailsafe	https://github.com/OctoPrint/plugins.octoprint.org/issues/914
TouchUI	https://github.com/OctoPrint/plugins.octoprint.org/issues/1126