Merge pull request #211 from crtmdiep/master

Remove controls for modifying size constraints in the Window State sample app
Added Web Store Sample App
Added assets and fixed nits
Merge branch 'master' of https://github.com/crtmdiep/chrome-app-samples
Reverted changes to existing Window State sample. A new sample will be created.
Added Window Options Sample
Added Web Store Edit URL to each project card
Added error console
Merge pull request #216 from GoogleChrome/addWebStoreSampleApp

Add web store sample app
changed calculator sample to use CSS instead of fixed images; removed 300ms delay on button clicks; allow calculator window to resize, using flexboxes
Added clear example

Notification will go away after 3 seconds
Updated screenshots Rich notifications
fixed name of web-store screenshot
Added web-store sample to README.md
fixed web-store tryme button
[hello-world] Bumped manifest version
bumped calculator version
Merge branch 'master' of github.com:GoogleChrome/chrome-app-samples
[web-store] Updated key to reflect the one from the published app
Fixed indents