moved pom dep versions to variables
updated pom to Java 1.7
updated maven plugins:

		<maven-bundle-plugin.version>2.5.3</maven-bundle-plugin.version>
		<maven-resources-plugin.version>2.7</maven-resources-plugin.version>
		<maven-source-plugin.version>2.4</maven-source-plugin.version>
		<maven-site-plugin.version>3.4</maven-site-plugin.version>
		<maven-assembly-plugin.version>2.5.1</maven-assembly-plugin.version>
		<maven-release-plugin.version>2.5.1</maven-release-plugin.version>
		<maven-javadoc-plugin.version>2.10.1</maven-javadoc-plugin.version>
		<maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
		<maven-compiler-plugin.version>3.2</maven-compiler-plugin.version>