v4.6.4

Release of version 4.6.4:

3343cc5 Bump version
94c13a7 Merge pull request #1265 from SweeXordious/Fixes_path_containing_spaces
aae8585 Adds CompilerClassLoaderTest
adb12e9 Use URLDecoder to decode path
64c38fa Add Arkane to companies using web3j (#1261)
29315ab replaceAll instead of replace when path contains %20 in CompilerClassLoader
5836037 spotless
7295e6f Fixes folder path containing space
9e51a34 Merge pull request #1263 from SweeXordious/fixes_classpath_windows
70788ac spotless
5f708fc Fixes classpath in CompilerClassLoader for windows support
7ab0f6a Merge pull request #1253 from SweeXordious/readme
0b9b62e Update README.rst
48cccc7 Update README.rst