1.3.4

This patch release includes fixes for the following issues:

• Option dest does not support function for CJS output #683
• Minify the JS bundles (besides each individual node) #695
• CleanCSS incorrectly updates url()s when using bundles #689
• Deprecate engine-dependencies package #687
• Bumps steal-conditional version to handle module identifiers with extensions #685
• Documentation issues on the steal-tools bundle page stealjs/steal#1197 and #697
• Adds buildResult as resolved value for stealTools.export #266
• Use pump to simplify node streams handling here and here.

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