Use UP Metric to show squid server availability

Version option added to the exporter.

Enable up metric

Merge pull request #20 from joaosilva15/patch-1

Enable squid_up

Squid basic auth support

v1.2

Update README

Fix metric name type

Merge pull request #18 from kintoandar/patch-1

Fix metric name typo

Adhere to Prometheus naming standards

With this release, some new (and breaking) changes introduced to follow Prometheus best practices and standards, this include a change in the interface and also metrics naming conventions:

• -listen-address and -listen-port command line args are merged to -listen
• Metrics now have the unit and type suffix for example:
  client_http_hits is now called client_http_hits_total
  See this for more details: https://prometheus.io/docs/practices/naming/

v0.5: Merge pull request #8 from sachk/master

Make the docker container smaller and add documentation

v0.4: Merge pull request #8 from sachk/master

Make the docker container smaller and add documentation

v0.3

Add go report card badge

v0.2

Add error message if connection to squid fails

v0.1

Fix travis file