Revert "Merge branch '1.7/release' into 1.7/release"

This reverts commit e02c02d35c, reversing
changes made to c5e8645d1a.

build.gradle

@@ -12,6 +12,7 @@ buildscript {
     }
     dependencies {
         classpath 'net.minecraftforge.gradle:ForgeGradle:1.2-SNAPSHOT'
+        classpath 'org.ajoberstar:gradle-git:0.10.1'
     }
 }
 
@@ -25,9 +26,22 @@ apply plugin: 'maven-publish'
 sourceCompatibility = 1.8
 targetCompatibility = 1.8
 
+import org.ajoberstar.grgit.Grgit
+
+def repo = Grgit.open(project.file('.'))
+project.ext.gitHash = repo.log().find().abbreviatedId
+def branchname = repo.branch.getCurrent().fullName
+if (branchname.contains('HEAD')) {
+    branchname = System.getenv("GIT_BRANCH")
+}
+branchname = branchname.substring(branchname.lastIndexOf('/') + 1)
+
 boolean dev = System.getenv("RELEASE") == null || System.getenv("RELEASE").equalsIgnoreCase("false")
 
-version = "${mod_version}"
+ext.buildnumber = 0
+project.buildnumber = System.getenv('BUILD_NUMBER') == null ? "CUSTOM" : System.getenv('BUILD_NUMBER')
+
+version = dev ? "${branchname}-${buildnumber}-${project.ext.gitHash}" : "${mod_version}.${buildnumber}"
 group = "team.chisel" // http://maven.apache.org/guides/mini/guide-naming-conventions.html
 archivesBaseName = "Chisel"