* Make all methods static
The two non-static methods are kept for temporary compatibility
* Use this instead of class name now that functions are static
* Update test
* Don't instantiate DocumentUtil
* Remove temporary non-static methods
* Remove unused global declaration
* Do not change selection if user selected text manually
* Remove capture argument for selectionchange listener
It is not applicable
* Make a note of user selection when Yomichan is enabled
User might have some text selected on a page prior to enabling Yomichan
via the toolbar icon; let it stay intact.
* Extract selection change by user listener into a method
* Remove unnecessary return
* Move touch start input filtering
* Refactor
* Add scanOnTouchPress
* Add preventPenScrolling
* Rename scanOnPenPress to scanOnPenMove
* Rename scanOnPenRelease to scanOnPenReleaseHover
* Simplify
* Refactor _searchAtFromPen early exit
* Merge _penPointerPressed and _penPointerReleased into a single variable
* Add more options
* Simplify pen pointer coordinates
* Implement scanOnPenPress and scanOnPenRelease
* Implement scanOnTouchRelease
* Fix tests
* Don't search on touch cancel
* Cancel touch if the touch action is used for scrolling or other gestures
* Fix incorrect scroll prevention options being used
* Organize options
* Fix typos
* Add type property to TextSource* classes
* Use type property rather than instanceof
* Expose a sentence offset value
* Use offset added to URL
* Improve fallback sentence for Anki note context
* Move function
* Add _onSearchClick function
* Move _onSearchClick after event prevention
* Prevent search if selection is changed before a click occurs
* Add api.textHasJapaneseCharacters
* Add support for empty query
* Add support for showing the query parser for TextSourceElement
with content that does not start with Japanese text
* Create Logger class and log instance
* Replace yomichan.logWarning with log.warn
* Replace yomichan.logError with log.error
* Replace yomichan.log with log.log
* Update the Yomichan class to use the global log object
* Update lint rules
* Move mixed/js/core.js to js/core.js
* Move mixed/js/yomichan.js to js/yomichan.js
* Move mixed/js/timer.js to js/debug/timer.js
* Move mixed/js/hotkey-handler.js to js/input/hotkey-handler.js
* Move mixed/js/hotkey-help-controller.js to js/input/hotkey-help-controller.js
* Move mixed/js/hotkey-util.js to js/input/hotkey-util.js
* Move mixed/js/audio-system.js to js/input/audio-system.js
* Move mixed/js/media-loader.js to js/input/media-loader.js
* Move mixed/js/text-to-speech-audio.js to js/input/text-to-speech-audio.js
* Move mixed/js/comm.js to js/comm/cross-frame-api.js
* Move mixed/js/api.js to js/comm/api.js
* Move mixed/js/frame-client.js to js/comm/frame-client.js
* Move mixed/js/frame-endpoint.js to js/comm/frame-endpoint.js
* Move mixed/js/display.js to js/display/display.js
* Move mixed/js/display-audio.js to js/display/display-audio.js
* Move mixed/js/display-generator.js to js/display/display-generator.js
* Move mixed/js/display-history.js to js/display/display-history.js
* Move mixed/js/display-notification.js to js/display/display-notification.js
* Move mixed/js/display-profile-selection.js to js/display/display-profile-selection.js
* Move mixed/js/japanese.js to js/language/japanese-util.js
* Move mixed/js/dictionary-data-util.js to js/language/dictionary-data-util.js
* Move mixed/js/document-focus-controller.js to js/dom/document-focus-controller.js
* Move mixed/js/document-util.js to js/dom/document-util.js
* Move mixed/js/dom-data-binder.js to js/dom/dom-data-binder.js
* Move mixed/js/html-template-collection.js to js/dom/html-template-collection.js
* Move mixed/js/panel-element.js to js/dom/panel-element.js
* Move mixed/js/popup-menu.js to js/dom/popup-menu.js
* Move mixed/js/selector-observer.js to js/dom/selector-observer.js
* Move mixed/js/scroll.js to js/dom/window-scroll.js
* Move mixed/js/text-scanner.js to js/language/text-scanner.js
* Move mixed/js/cache-map.js to js/general/cache-map.js
* Move mixed/js/object-property-accessor.js to js/general/object-property-accessor.js
* Move mixed/js/task-accumulator.js to js/general/task-accumulator.js
* Move mixed/js/environment.js to js/background/environment.js
* Move mixed/js/dynamic-loader.js to js/scripting/dynamic-loader.js
* Move mixed/js/dynamic-loader-sentinel.js to js/scripting/dynamic-loader-sentinel.js
