changed flash message and redirect for global fee change
fixed global controller spec
merge conflict
adjusted the InvoiceService create method to work with decimals
Merge branch 'refactoring-immigrants' of https://github.com/jmejia/daughter_of_store_engine
Merge branch 'master' of github.com:jmejia/daughter_of_store_engine
precompiled  assets
adjusted seed data
adjusted display on invoices page to display monthly invoice cost if it exists