v3.0

What's Changed

• Guide test by @malteish in #75
• Extend readme by @malteish in #78
• Incorporate hacken audit by @malteish in #77
• ownable -> ownable2step by @malteish in #80
• use _grantRole instead of _setupRole by @malteish in #81
• Fix-docs by @malteish in #82
• prevent accidental use of msg.sender and msg.data by @malteish in #84
• add more info on supported currencies by @malteish in #85
• revert instead of return on mint by @malteish in #87
• Allow rounding by @malteish in #89
• Improve-_beforeTokenTransfer by @malteish in #83
• Enable setting 0 fee immediately by @malteish in #86
• Increase decrease minting allowance by @malteish in #91
• extend doc section on trusted forwarder by @malteish in #92
• restructure fee calculation by @malteish in #95
• Reduce external calls and add check for AllowList=0x0 by @malteish in #98
• remove unnecessary command by @malteish in #100
• Increase coverage by @malteish in #101
• Check overflow reverts by @malteish in #103

Full Changelog: v2.4...v3.0