update dependencies to latest version

easy-rules-mvel/pom.xml

@@ -14,8 +14,8 @@
 
     <properties>
         <mvel2.version>2.4.0.Final</mvel2.version>
-        <system-rules.version>1.16.0</system-rules.version>
-        <jackson-dataformat-yaml.version>2.9.3</jackson-dataformat-yaml.version>
+        <system-rules.version>1.17.1</system-rules.version>
+        <jackson-dataformat-yaml.version>2.9.5</jackson-dataformat-yaml.version>
     </properties>
 
     <scm>

pom.xml

@@ -30,14 +30,14 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <java.version>1.7</java.version>
         <junit.version>4.12</junit.version>
-        <assertj.version>2.6.0</assertj.version>
-        <mockito.version>2.7.1</mockito.version>
+        <assertj.version>2.9.0</assertj.version>
+        <mockito.version>2.18.0</mockito.version>
         <slf4j-api.version>1.7.25</slf4j-api.version>
         <maven-cobertura-plugin.version>2.7</maven-cobertura-plugin.version>
         <maven-coveralls-plugin.version>4.3.0</maven-coveralls-plugin.version>
         <maven-release-plugin.version>2.5.3</maven-release-plugin.version>
-        <maven-compiler-plugin.version>3.6.1</maven-compiler-plugin.version>
-        <maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
+        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
+        <maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version>
         <maven-javadoc-plugin.version>2.10.4</maven-javadoc-plugin.version>
         <maven-license-plugin.version>3.0</maven-license-plugin.version>
         <maven-enforcer-plugin.version>1.4.1</maven-enforcer-plugin.version>