Enabled concurrent requests while a stemcell is uploading

- Updated nginx to 1.4.5
- Added nginx module headers-more-v0.25
- Added nginx module nginx-upload-module-2.2
- Modified upload stemcell controller to use nginx's upload module,
  which handles uploading so that it doesn't block Ruby execution. This
  allows the director to respond to concurrent requests.

[#74421246]

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
Enabled concurrent requests while a release is uploading

[#74421246]

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
Enabled concurrent requests while a compiled package group is uploading

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
split up finder from a conditional

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
use nginx with integration tests and removed direct tgz upload to director ruby process

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
Do not truncate empty database

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
improve stemcell and release uploading integration tests
formatting blobstore nginx config
log response times in nginx log for director and blobstore

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
Update nginx blobs.
switch default integration tests to go agent

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
Install trusty linux images from deb packages

Signed-off-by: Maria Shaldibina <mariash@pivotallabs.com>
Set deployment before running tests against existing micro

Signed-off-by: Maria Shaldibina <mariash@pivotallabs.com>
Update BOSH release to ruby 2.1.2.

- Update ruby package dependencies
- Remove old ruby package blob references
- Update ruby packaging script

Signed-off-by: caleb miles <cmiles@pivotallabs.com>
Remove unused blobs from src

Signed-off-by: caleb miles <cmiles@pivotallabs.com>
Update ruby package spec with Ruby 2.1.2

Signed-off-by: Adam Stegman <astegman@pivotallabs.com>
Ruby 2.1.2 is .tar.gz not .tgz

Signed-off-by: Adam Stegman <astegman@pivotallabs.com>