Update main_app.html

Binding to inputValue makes the input variable updated when the user digit the new value and not after the focus is lost.
describe update package
Merge pull request #100 from d2m/update

describe update package
Merge pull request #98 from fedy2/patch-2

Update main_app.html
update polymer template data
working on ide integration
remove test
Merge pull request #103 from google/devoncarew_ide

working on ide integration
rev version to 0.1.1
Update CHANGELOG.md
Merge pull request #102 from google/update_polymer_template

update polymer template data