Updated schema check command to include proper tables

• Updated schema check command with the proper reserved database tables

Added Inventory Suppliers

• Added inventory suppliers
• Added global exception catching when processing stock changes
• Reformatted and added more tests

Updated version, optimized methods, added more documention

• Updated InventoryServiceProvider::version to correct 1.2.1
• Optimized methods in most traits
• Added more documentation throughout

Combined SKU's prefix and code column into one

• Merged inventory_skus prefix and code column into one column named code
• Added sku_separator configuration option
• Removed default 20 limit on the code column on the inventory_skus table. It is now Laravel's default (255)

Regenerating an SKU will restore the previous if generation fails

• Make sure regenerating an SKU doesn't destroy the old record if recreating a new SKU fails
• Updated test to match

Update to SKU generation

• The generate SKU method will now return false if the category name for the item is blank
• Added test
• Updated configuration documentation and increased default sku code length to 6

New features and bug fix

• Added Inventory model method findBySku($sku = '')
• Added test testInventoryFindBySku()
• Fixed generateSku() returning actual SKU string instead of the SKU model record

Added event to SKU generation

• Added new 'inventory.sku.generated' event when an SKU record is created

Update to the SchemaCheckCommand

• Included inventory_skus in the schema check command

Automatic SKU Generation

• Unique inventory item SKU's can now be automatically generated and regenerated