* Fix unnamed return variable warning
This commit fixes warnings thrown by the solc 0.7.4 compiler:
"Warning: Unnamed return variable can remain unassigned. Add an explicit
return with value to all non-reverting code paths or name the variable."
* Fix function state mutability warning
This commit fixes warnings thrown by the solc 0.7.4 compiler:
"Warning: Function state mutability can be restricted to pure"
* Fix shadows an existing declaration warning
This commit fixes warnings thrown by the solc 0.7.4 compiler:
"Warning: This declaration shadows an existing declaration."
1. Arguments by default are not underscored.
2. If the name isn't available due to shadowing, use prefix underscore.
3. If prefix underscore isn't available due to shadowing, use suffix underscore.
* Remove _grantRole and _revokeRole, replace with _setupRole
* Make all external AccessControl functions public
* Remove Ownable._transferOwnership
* Rename ERC721's _safeTransferFrom and _transferFrom to _safeTransfer and _transfer
* Make all ERC721 external functions public
* Make all miscelaneous external functions public instead
* Add changelog entry
* Move calldata arguments to memory
* Update contracts/access/AccessControl.sol
Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
* Restrict setupRole to the constructor
* Replace isConstructor for !isContract
Co-authored-by: Francisco Giordano <frangio.1@gmail.com>
* Merge GSNBouncerBase into GSNRecipient
* Remove emtpy implementations for _pre and _post
* Rename bouncers to recipients
* Rename bouncers documentation to strategies
* Rewrite guides and docstrings to use the strategy naming scheme
* Address review comments
* Apply suggestions from code review
Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
* change wording of docs
