added .jenkins build script and sendgrid package api scripts and github readme
* added ci-repo and cookbooks/ci_dependencies
* added berksfile
* added berksfile.lock
* added vagrant file
Merge branch 'sendgrid_package_patch' into sendgrid-10.0.0

Conflicts:
	README.md
Fixed typo in readme
Update readme
Updated readme
Merge branch 'sendgrid_package_patch' into sendgrid-10.0.0