v1.1

Several new features since v1.0:

• WASM support for running LCI in a browser
• Support multiple encodings of numerals (Church, Scott, etc)
• Add let syntax, eg let x = 1 in x + x
• Add auto-completion of aliases and system commands
• Rewrite several functions in .lcirc using folds
• Consult file from the command line with lci <file>
• Several small fixes