Add logic to retrieve the current stable ledger
Re-order import statements for consistency
Use get_list_or_404 for MechListView
Reinstate template for MechDetailView
Add basic mech_listing template
Fix name of mech_detail template file
Add Weapon Properties and related functions
Add MechEquipment model, and include criticals counting functionality.
Add MechEquipment.Meta
Add Tonnage and Criticals Functions for MASC
Add Melee criticals / tonnage functions for Hatchet \ Sword
Add Location classification to ref data code
Add directfire_tonnage() to mech design
Add implementation of move_jump
Use correct manager to get mech equipment
Add Jumping MP to Mech Detail Template