Add .golangci.yml and update dep (#184)

* add .golangci.yml and update dep

Prepare environment for https://golangci.com builds by installing
libcurl-dev.
Also update dep from 0.4.1 to 0.5.0

* Fix coveralls command in TravisCI script

.travis.yml

@@ -3,9 +3,9 @@ sudo: required
 language: go
 
 env:
-  - DEP_VERSION="0.4.1"
+  - DEP_VERSION="0.5.0"
 
-services:  
+services:
     - docker
 
 before_install:
@@ -35,7 +35,7 @@ install:
 script:
 # Run unit tests
 - go test -v -covermode=count -coverprofile=coverage.out
-- $HOME/gopath/bin/goveralls -coverprofile=coverage.out -service=travis-ci -repotoken $COVERALLS_TOKEN
+- $HOME/gopath/bin/goveralls -coverprofile=coverage.out -service=travis-ci -repotoken=$COVERALLS_TOKEN
 # Launch a fake camera to check if cameradar is able to access it
 - docker run -d --name=fake_camera -e RTSP_USERNAME=admin -e RTSP_PASSWORD=12345 -p 8554:8554 ullaakut/rtspatt
 # Launch cameradar on the local machine