0.9.1b hotfix

Changes:

- equipment menu equip slots will now be opening individual inventories with the respective item types

Bug fixes:

- Spanish language was added in the dropdown in options
- repairing any item with materials will not include previous material costs
- fixed anvil and potion icon assignment
- fixed morale and defect reduction tooltips in inventory
- focused hammer will show tooltip for worker 1 and 2
- potion inventory will be available in heroes menu