Merge pull request #34 from sosolimited/updatedEntityx

Merge pull request #33 from sosolimited/https_submodule

Use HTTPS for submodule.

Updated entityx version.

Note about scripting behaviors.

Merge branch 'cinder_update'

Update use of gl::ScopedDepth.

Merge branch 'toc'

Minor text edits.

Regenerate README table of contents.

Merge pull request #30 from sosolimited/whitespace

Batch convert tabs to spaces.

Merge pull request #29 from sosolimited/render_bugfix

Enable uniform scaling in depth sorted circles.

Note about compiler support.