OpenBoard new 1.4.5 v17

All releases are mostly development versions. They can be used, but may contain confusing or unnecessary settings. Settings may be removed or reset on updates. Consider all releases as beta quality at best.

The main changes intended to be done before a proper release are done, now work on when ready issues can start.
Focus will be on fixing bugs and preparing for a release on F-Droid.

Note that support for Android 4.4 will likely get dropped in the next version, minimum version will be 5.0. Please open a discussion or issue if you are on 4.4 and object to this change.

Changes since v16:

• removed old keyboard parser
  • some previously enabled keyboard might be disabled after the upgrade, just enable them again if that happens
• symbols in key popups are now taken from symbols layout
  • except for a few cases where the row is longer than the corresponding symbols row
  • first row of symbols layout adjusted for consistency (noticeable only if number row is enabled)
• customizable keyboard layouts
  • with a very basic in-app editor that is only suitable for the simple layout style
• customizable popup keys and label (#314)
  • set in preferences, and override in language settings
• customizable toolbar keys (previously pinned keys are removed on upgrade)
• inline autofill support by @arcarum, with a some more people helping and testing (#336)
• improved bn_BD popup keys, by @RHJihan (#347)
• increased keyboard height more when number row is enabled
• one-handed mode now applies to emoji and clipboard views, not just keyboard
• split keyboard now also applies to emoji view
• swipe left in clipboard view to remove entry
• clipboard view now has toolbar, and space and delete keys (same as emoji view)
• improvements for rounded style, by @BlackyHawky (#362, #351)
• minor fixes and improvements (#285, #298, #303, and some more)