Allow to set whether to print in build.dart

R=gram@google.com

Review URL: https://chromiumcodereview.appspot.com//15882008
bump version again
switch to dartanalyzer (dart_analyzer is gone), update expectatiosn on some
tests (changed in the last roll for some reason)

Review URL: https://chromiumcodereview.appspot.com//16473004
merged
updated