Merge pull request #11 from dubdabasoduba/feature/cash-150

Added location field to cash point.
    - Added liquibase script to add field and FK
    - Updated model, service, tests for location field
    - Updated cash point admin page to allow entering location
    ^cash-150 Completed
Updated git ignore file to the standard ignore that we are using for other modules.
Merge branch 'develop' of github.com:OpenHMIS/openmrs-module-openhmis.cashier into develop
Moved item editor back to cashier module.
	This editor used to be in the casher module and was mistakenly moved in the inventory module. It is only used on the bill page so it should not be there.
Renamed Item editor to ItemAutocomplete so that it is more clear what kind of editor it is.
Moved item autocomplete editor template to cashier module.
Merge branch 'develop' of https://github.com/OpenHMIS/openmrs-module-openhmis.cashier into develop