update driver to 1.7.6

Author: pontusmelke

build.gradle

@@ -71,7 +71,7 @@ ext {
     argparse4jVersion = '0.7.0'
     junitVersion = '4.12'
     evaluatorVersion = '3.5.14'
-    neo4jJavaDriverVersion = '1.7.5'
+    neo4jJavaDriverVersion = '1.7.6'
     findbugsVersion = '3.0.0'
     jansiVersion = '1.13'
     jlineVersion = '2.14.6'