[COOK-1979] - curl-dev doesn't exist in ubuntu 10.04 - 12.04
Install 1.2.6 for source installs

This is the latest stable release
Update the checksum to 1.2.6
Update to passenger 3.0.19

Large list of bug fixes and aligns with the current version of nginx
that we install
Update the checksums for the current files
Use the correct SHA-256 checksum for upload_progress
Merge pull request #86 from tas50/COOK-2310

COOK-2310: Use the correct SHA-256 checksum for upload_progress
Merge pull request #84 from tas50/COOK-2314

COOK-2314: Update to passenger 3.0.19
Merge pull request #82 from tas50/COOK-2304

COOK-2304: Install 1.2.6 for source installs
Merge pull request #73 from mirasrael/COOK-2219

Support proxy_read_timeout option (nginx.conf)
Merge pull request #70 from sean-horn/master

[COOK-1979] - curl-dev doesn't exist in ubuntu 10.04 - 12.04
Merge pull request #85 from tas50/COOK-2309

COOK-2309: Update the checksums for the current Geo files
Support client_max_body_size option (nginx.conf)