Bump some dependencies.

build.gradle

@@ -29,7 +29,7 @@ configurations.all {
 dependencies {
     compile group: 'com.google.code.findbugs', name: 'jsr305', version: '3.0.0'
     compile group: 'com.squareup.dagger', name: 'dagger-compiler', version: '1.2.1'
-    compile group: 'com.google.auto.value', name: 'auto-value', version: '1.0-rc1'
+    compile group: 'com.google.auto.value', name: 'auto-value', version: '1.0-rc4'
 
     bundle group: 'com.squareup.dagger', name: 'dagger', version: '1.2.1'
     bundle group: 'com.esotericsoftware.yamlbeans', name: 'yamlbeans', version: '1.08'
@@ -45,12 +45,12 @@ dependencies {
     plugin group: 'com.dmdirc', name: 'tabcompletion_bash', version: '+', changing: true
     plugin group: 'com.dmdirc', name: 'tabcompletion_mirc', version: '+', changing: true
 
-    testCompile group: 'junit', name: 'junit', version: '4.11'
-    testCompile group: 'org.mockito', name: 'mockito-all', version: '1.9.5'
+    testCompile group: 'junit', name: 'junit', version: '4.12'
+    testCompile group: 'org.mockito', name: 'mockito-all', version: '1.10.17'
     testCompile group: 'com.google.jimfs', name: 'jimfs', version: '1.0'
 
-    pmd group: 'net.sourceforge.pmd', name: 'pmd-core', version: '5.2.2'
-    pmd group: 'net.sourceforge.pmd', name: 'pmd-java', version: '5.2.2'
+    pmd group: 'net.sourceforge.pmd', name: 'pmd-core', version: '5.2.3'
+    pmd group: 'net.sourceforge.pmd', name: 'pmd-java', version: '5.2.3'
 }
 
 publishing {
@@ -94,7 +94,7 @@ repositories {
 pmd {
     ruleSets = []
     ruleSetFiles = files("$rootDir/etc/pmd/full.xml")
-    toolVersion = '5.2.2'
+    toolVersion = '5.2.3'
     ignoreFailures = true
 }