ruby_jard

This release fixes bunch of bugs, and performance issues reported by the users after beta launch. No new features are introduced.

• Pry and Byebug backward compatibility: #39, #45
• Error with non-UTF8 encoding in the output: [#55](https://github.com/nguyenquangminh0711/r...

• Filter feature
• New variable screen look and feel
• Improve website and documentation page.
• Improve color-scheme command
• Use Thread sequential label instead of Thread's object id
• Complete testing infrastructure.
• Fix multiple performance issues.

UX/UI

• Add gruvbox, 256-light, one-half-dark, and one-half-light color scheme
• Add jard output command
• Add jard hide command
• Add jard show command
• Add alias_to_debugger, enabled_screens option
• Add responsive layouts to fit into different sc...

UX/UI

• Add wehereami as an alias for list command
• Add theme command to switch theme at runtime
• Load configuration file when Jard starts

Bug fixes

• Backward compatible issue: Array#filter is available in ruby 2.5.x and above.
• Fix Jard is bypassed when writting something to stdout while debugging (https://github.com/nguyenquangminh0711/ruby_jard/pull/5)

Summary: Render mechanism and theme system

UX/UI

• New color scheme: 256, as the default color scheme. It works well with all 256-color terminal emulators.
• New color scheme: deep-space. It's a 24-bit color scheme.
• UX change: swap positions of default panels:

    Source    | Backtrace
    Variables | Threads
  

• New narrow layout, which consists of source an...