Fixed issue where mount was prepending instead of appending.

1. Mount function is supposed to append new component to container. This has been updated to do so.

DataStore Component mounts automatically.

1. DataStore components now mount automatically, using the state of their dataStore.
2. Update DataStore Component test for new mounting functionality.
3. Update DataStore test  to check for automatic mounting.
4. Update merge to accept multiple objects. If a single object is passed int, it clones it. Merge now does a deep clone of objects.
5. Added a new utility function: getType. This returns the type of primitive and object types as a capitalized value: Null, Undefined, String, Number, NaN, Function, Array, Object, RegExp, Symbol, etc.
6. Renamed isSameVNode to areEqual for more generic use for value comparison.
7. Updated Component class to use getType and isSameObject.
8. Added unwatch to Observer class. Pass in the event to unwatch. This cancels all watchers for that event.
9. Updated observer test for unwatch.

Switched back to using setTimeout for class component updates.

Turns out setTimeout gives smoother animations with thousand of elements being created and animated on screen than requestAnimationFrame.

Renamed datastore folder to data-store.

Keep component state immutable when using setState

1. Updated how setState works when using a callback.
2. The prevState is now a copy of the original component state.
3. This means that callback must return prevState for component state to be updated.
4. This, of course, will also trigger a re-render of the component, if state did change.
5. Refactored component update method to throttle updates at intervals of 16.66 milliseconds (60 frames per second).
6. Updated component.html test for setState changes.

Fixed bug where passing DOM node to mount wasn't getting accepted.

1. Now you can pass a DOM node or string as the container in which to mount a functional component.

Updated JSDoc Types.

1. Imported types as typedef instead of importing inline.
2. Reduced the number of type casts by changing types from `Node` to `Element` where possible.
3. Add `checkjs` to package to run  tsc to verify TypeScript parsing passes.
4. Build script now automatically runs type checker.

JSDoc type updates.

1. Used /** @type {Object.<string, any>}*/(node).newProperty, casting Node to generic object, allowing addition of new properties.
2. Added other minor type improvements across files.
3. Removed @description tag since the first block of text in a JSDoc comment is treated as the description automatically.
4. Updated test files to use favicons to avoid unnecessary warnings in browser console.
5. Moved build functionality from gulpfile to NPM command line script. Running Rollup from command line.
6. Added rollup.config.js file to project.

Updated new project gulpfile.

1. The bundling script for new project was using deprecated "dest" property.
2. Updated that to "file".

Using ts-ignore to avoid escaping expando properties.

1. Switched to using // @ts-ignore in code. This turns off type checking for that line of code.
2. Using this to avoid having to write element['mounted'].
3. Alternative:
// @ts-ignore
element.mounted