Fix bugs in newpasses

 - Remove the minimum width of Indents in `@computeDimensions`; leave this to the `@computeDropAreas` pass, which is what we care about.
 - Increase the left-margin of indents from `indentWidth` to `indentWidth + padding`, which is what the parent expects.

Build system changes:
 - Fix watch task compilation, which had a bug in it before
 - Make example/text.coffee use require.js AMD directly instead of the r.js optimized file
 - Fix example/test.coffee vocabulary (`getViewNodeFor`).