0.18.0

Features and enhancements

• [core] Perform loop unroll optimization technique for the generated C++
  code. It dramatically improves RAM consumption and XOD execution performance.
  (thanks, @awgrover).
• [ide] Eight new embedded tutorial chapters (21 through 28) explaining pulse
  basics and LCD interaction.
• [ide] Support Markdown in patch comments. Your patches now can be more
  expressive. See the tutorial project for example.
• [ide] Add OS file associations for *.xodball, project.xod, *.xodp and a
  list of recent items in the app system menu. Currently works on Windows and
  macOS, not Linux yet.
• [ide] You’re not limited now in where on file system you save a project.
  Previously a project was saved in a “workspace,” now you may choose an
  arbitrary directory with the native OS “Save” dialog.
• [ide] Blur the difference between single-file projects (xodballs) and regular
  multi-file projects. Both kinds can be seamlessly saved/loaded through “File
  → Save,” “File → Save as,” “File → Save a Copy,” and “File → Open.”
• [ide] No more clunky project selection dialog on desktop IDE start: just a
  ready to use blank project with a welcoming comment.
• [ide] Add “View → Pan to Origin” (Home) and “View → Pan to Center”
  (Ctrl+Home).
• [ide] Upgrade and tweak IDE build toolchain (Webpack). A consequence is 2×
  smaller distributive code size which means IDE loads faster.
• [ide] Unify font sizes and styles across all sidebars, popups, dialogs. The
  main font size now is 12px rather than 11px. That makes IDE more accessible
  and comfortable to work with.
• [ide] Code editor has got block commenting (Ctrl+/), auto-close opening
  brackets, trailing space highlight, auto-clear trailing spaces on empty
  lines.

New nodes

• xod/core/pid-controller
• xod/core/delta-time
• xod/core/delta
• xod/common-hardware/ds18b20-thermometer

Bug fixes

• [ide] Fix few typos in UI (thanks, nick).
• [ide] Quick help panel text is copyable now.
• [ide] When starting debugger patch panning position is preserved, no more
  jumps out of work area. Breadcrumbs bar no longer overlaps the patch when
  appear.
• [ide] Bring back grabbing and hand cursors while panning.
• [ide] Fix C++ code editor improper syntax highlighting in the middle of
  identifiers and comments.
• [ide] The not-implemented-in-xod node now carries C++ implementation when
  copied to the clipboard, the code template which appears with the node is
  applied immediately (thanks, bitrex).
• [ide] Fix link to mouse and keyboard shortcuts in the top menu.
• [ide] Make text in the deployment panel copyable.
• [ide] Do not trim leading whitespace in an output of the compiler.
• [ide] Gracefully handle USB connection lost while debugging.