Gas Optimizations

[code423n4]

See the markdown file with the details of this report here.

[gititGoro]

Good report. No invalid items. Points left on the table:

1. Gas before and after comparisons
2. Friendlier formatting such as a table of contents.

[IllIllI000]

Good report. No invalid items. Points left on the table:

1. Gas before and after comparisons
2. Friendlier formatting such as a table of contents.

@gititGoro The following items are invalid:

• Public function visibility can be made external
• Explicit initialization
• Index initialized in for loop
• abi.encode() is less gas efficient than abi.encodePacked()
• Extra declaration in named returns that don't use them