General

• Add support for Homebrew.
• Add project to the Swift Package Index
• Update calls to bash scripts in the tutorials.
• Fix the silhouette favicon for safari.

Enhancements

• Add translation for Array.removeAll().

Bugfixes

• Implement structured templates for the stdlib translations, which should solve a lot of bugs (#24).
• Support types with parentheses (#49).
• Support calls to optional functions (#50).
• Support consecutive declarations in if lets (#54).
• Add translations for numeric casts between Ints, Doubles and Floats (#53).
• Other small bugfixes.