v5.18.0

• Enable smart linking (#1252)
• Add basic snap package files (#1109)
• Add WhiteSource Bolt config (#1243)
• Add Windows AMD64/64bit release
• Add Windows dependency install script
• Add Windows build zip tarball release script
• Add shfmt test on Travis CI for shell scripts
• Add missing libssl-dev in Debian/Ubuntu dependency
• Add eclint format checking for certain files on Travis CI
• Improve .travis.yml styling
• Set macOS builds to use cocoa for 64bit release (#1224)
• Update .editorconfig
• Update Lazarus on macOS to v2.0.4
• Update Lazarus on Windows to v2.x (with FPC v3.0.4)
• Update OpenSSL for Windows from 1.0.2s to 1.0.2t
• Update Traditional Chinese translation
• Update Docker image for arm builds on Travis CI
• Update Travis CI Linux env to Ubuntu Bionic (18.04)
• Update Travis CI mac env to macOS 10.14 w/ Xcode v11.1
• Update node.js version on Travis CI env from v4 to v10
• Update Debian/Ubuntu dependency for realpath command
• Refactor build script of macOS and Windows
• Refactor dependency install script of Debian/Ubuntu Linux and macOS
• Refactor, clean up and simplify .travis.yml