add example of including in pubspec.yaml
clarify message
tweaks from review, added links to issue tracker and mailing list
add test for #254 and advance pubspec
bug was already fixed, but we didn't push the new pkg yet.

Review URL: https://chromiumcodereview.appspot.com//11507015
Update CHANGELOG.md
Merge pull request #253 from sethladd/add-pubspec-to-readme

Add pubspec to readme
Update README.md

(update formatting in readme)
Add file mappings to CompilerResult.

These mappings will be consumed by DwcTask in buildtool and passed
to the Editor which uses them to launch generated files when a user
tries to launch an input file.

Review URL: https://chromiumcodereview.appspot.com//11453030
Remove all the analyzer output in run.sh

Review URL: https://chromiumcodereview.appspot.com//11485018
Updating dwc for breaking changes that will be part of the next sdk

Review URL: https://chromiumcodereview.appspot.com//11471037
Update README.md
Fixes for the upcoming sdk changes (bleeding_edge 16052)

Review URL: https://chromiumcodereview.appspot.com//11416379
Add usage to explainer build script

Review URL: https://chromiumcodereview.appspot.com//11543007
Update CHANGELOG.md
Bump pubspec version, so we re use pub lish.
Import dart.js through https (Fix #252)

BUG=

Review URL: https://chromiumcodereview.appspot.com//11565054
Fix the build. I wasn't expecting it, nice that we have drone!

Review URL: https://chromiumcodereview.appspot.com//11568049
fix: script tag - unhandled exception in case of absolute path in "src" attribute

+ some unit tests
removed deprecated function literal
response to comments by sigmundch

see https://github.com/dart-lang/web-ui/pull/265