add maps engine examples
Fix pip install command on README
Upgrade prediction api sample code to v 1.6 and fix training data.
Merge pull request #5 from apicardgoog/master

Upgrade prediction api sample code to v 1.6 and fix training data.
Merge pull request #2 from eduardocereto/patch-1

Fix pip install command on README
Merge pull request #1 from jlivni/master

add maps engine examples