Added binder_of_caller to development for more interactive features! :)
Removed no longer used variability attribute.
Merge pull request #723 from quintel/variability

Removed no longer used variability attribute.
Defined a converter method to calculate the typical annual electricity production of a technology if it would run all year. This helps clean up the queries that determine the slider caps for these technologies. See https://github.com/quintel/etsource/issues/863
Merge pull request #724 from quintel/intuitive_slider_caps

Add ConverterApi#maximum_yearly_electricity_production_per_unit