Reduce distribution size and load times for Bramble about brackets

[sedge]

When our thimble is being loaded, there's a number of requests (~70!) that just flat out fail. These need to be addressed.

[humphd]

Hilariously, Thimble is loading jquery-ui (426K), jquery (262K), and other scripts in unminified form, which is adding a ton of heft. So that will help a lot. I'll fix upstream. We also load jquery.min.

Other things not minified for some reason, and being loaded by friendlycode and/or brackets:

• require.js (we also load the minified version)
• slowparse.js (we also load this twice in HTMLHinter and friendlycode)

Because the extensions are bundled into a single module and minified, we're also loading things many times (e.g., the requirejs text plugin gets loaded at least 6 times).

Also, the webmakerLogin.min.js is 225K, which is a bit hard to swallow. I'll see if I can get that shrunk down upstream too.

So there's some pretty quick wins here. I bet we'll find other things we can kill off, since we don't need to duplicate some functionality across the various iframes/repos.

[humphd]

Filed/fixed mozilla/thimble.mozilla.org#472 to fix minifying CDN resources in Thimble.

[humphd]

Filed mozilla/webmaker-login-ux#167 on webmakerLogin.min.js

[humphd]

The font loading Brackets is doing adds a lot of weight on the wire. Pomax filed a bug upstream on this, adobe#10680

[humphd]

Filed #78 on reducing the size of fonts we load, which gets us down to the sub-600K level.

[humphd]

Landed #74, which helps a bunch.

[AJDBenner]

This PR will help reduce the size by about 100K before gzip

[AJDBenner]

This PR helps reduce the size.

[humphd]

The only concrete thing left is the font switch, which is #78, so I'm going to close this bug. We made a huge dent, nice work!