Update version number to 0.7.0

Author: junichi11

manifest.mf

@@ -3,4 +3,4 @@ AutoUpdate-Show-In-Client: true
 OpenIDE-Module: org.netbeans.modules.php.cake3
 OpenIDE-Module-Layer: org/netbeans/modules/php/cake3/resources/layer.xml
 OpenIDE-Module-Localizing-Bundle: org/netbeans/modules/php/cake3/Bundle.properties
-OpenIDE-Module-Specification-Version: 0.6.0
+OpenIDE-Module-Specification-Version: 0.7.0