edit homepage
removing PENDING
Link to code lab, not tutorials
Hans Solo is Han Solo
stopping tutorial sidebar from scrolling with page
Update programmer's guide

R=mcampione@google.com

Review URL: https://chromiumcodereview.appspot.com/61553010
Merge branch 'dart-1.0' of https://github.com/dart-lang/dartlang.org into dart-1.0
Merge branch 'dart-1.0' of https://github.com/dart-lang/dartlang.org into dart-1.0
adding new download button icon
increasing size of h4
Merge branch 'dart-1.0' of github.com:dart-lang/dartlang.org into dart-1
Hide remarks in the book

R=amjoyce@chromium.org

Review URL: https://chromiumcodereview.appspot.com/61473005
adding retina sprite css
updating minifying image
making slider buttons larger on mobile
adding padding to code samples
reverting to old Optionally Types image
dropped in flight school
partial fix for company name pop-in
Merge pull request #221 from ocupop/dart-1.0

dropped in flight school