Fix compatibility issues and .gitignore

.gitignore

 .idea/*
 *.iml
 target/*
+
+.project
+.settings
+.classpath
+
+.DS_Store
+
+*.class
+

pom.xml

         </plugins>
     </build>
     <dependencies>
-
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-api</artifactId>
-            <version>1.7.5</version>
-        </dependency>
-
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-log4j12</artifactId>
-            <version>1.7.5</version>
-        </dependency>
-
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>RELEASE</version>
+            <version>4.12</version>
         </dependency>
     </dependencies>
 
-</project>
+</project>

src/main/java/com/zipcodewilmington/phone/PhoneNumberFactory.java

 package com.zipcodewilmington.phone;
 
-import com.sun.javafx.binding.Logging;
 import com.zipcodewilmington.exceptions.InvalidPhoneNumberFormatException;
 
 import java.util.logging.Logger;
     public static PhoneNumber createPhoneNumber(String phoneNumberString) {
         return null;
     }
-}
+}