Make Github Release from Travis. (#174)

Update version with make. To update version just run
`make version v=<version>` e.g., `make version v=1.2.0`.

.travis.yml

@@ -9,3 +9,11 @@ before_install:
 script:
   - make check
   - goveralls -coverprofile=coverage/gover.coverprofile -service travis-ci
+deploy:
+  provider: releases
+  api_key:
+    secure: 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
+  file_glob: true
+  file: dist/$TRAVIS_TAG/marathon-consul_*
+  on:
+    tags: true

Makefile

@@ -27,6 +27,8 @@ deps:
 	@mkdir -p $(COVERAGEDIR)
 	@which gover > /dev/null || \
         (go get github.com/modocache/gover)
+	@which goxc > /dev/null || \
+        (go get github.com/laher/goxc)
 
 build-deps: deps format test check
 	@mkdir -p bin/
@@ -79,13 +81,13 @@ deb: FPM-exists build
         ../../debian/marathon-consul.upstart=/etc/init/marathon-consul.conf \
         ../../debian/config.json=/etc/marathon-consul.d/config.json
 
-release: deb
-	@go get github.com/laher/goxc
+release: deb deps
 	goxc
 
-bump:
-	goxc bump
+version: deps
+	goxc -wc -pv=$(v)
 	git add .goxc.json
-	git commit -m "Bumped version"
+	git commit -m "Release $(v)"
+	git tag $(v)
 
 .PHONY: all bump build release deb