Locked down 'pegjs' and 'uglify-js' dependencies.

[CodeLenny]

Hey Blake,

I noticed uglify-js v3 was just released, which includes breaking changes.
I didn't look through the changes, but they broke the middleware serving /blade/blade.js, as well as tmpl.toString(), which now returns undefined:

blade._cachedViews["IDE.blade"]=undefined;var e=blade._cb["IDE.blade"];e&&e(null,".",[],false);

While creating the fork to specify the uglify-js version number, I found that pegjs removed the --track-line-and-column option in version 0.8.0 (4th item in the big changes), so I locked pegjs down as well.

I converted your version numbers from greater-than >=2.2.3 to caret syntax (^2.2.3). I can convert them back to version ranges if they were specified with greater-than for a reason, or if you just prefer that syntax.

Thanks,
Ryan

[bminer]

Thanks!

[CodeLenny]

@bminer Thank you for merging so quickly!