Merge pull request #96 from 10Pines/disable_autocomplete_of_prorrateo_when_editing_comprobrante

Add options to comprobante javascript init method to disable autocomplet...
Remove unused test helpers
Merge branch 'avoid_adding_invalid_conditions_when_deserializing_filter'
Revert "Merge branch 'avoid_adding_invalid_conditions_when_deserializing_filter'"

This reverts commit b9ad14f256a4676ff294d773c3bf67ea2b9fd27b, reversing
changes made to 84b23958730c9289dad987aa74085757779cf44c.
Revert "Revert "Merge branch 'avoid_adding_invalid_conditions_when_deserializing_filter'""

This reverts commit 2c341a784c87dc5c7ded80813df6f348033abd2f.
Merge pull request #97 from 10Pines/avoid_adding_invalid_conditions_when_deserializing_filter

Update will_filter gem with some fixes in adding default filter conditio...
Add gross margin report
Add filtering by operacion to gross margin report. Minor visual improvements
Merge branch 'gross_margin_report' into staging