Updated to use easymock 5.0.1, dropped the support for Scala 2.10.7 a…

…s class generated by Scala 2.10 seems not playing well with easymock 5.0, got the following error when running test:

java.lang.IncompatibleClassChangeError: org.scalatestplus.easymock.EasyMockSugarSpec$$anonfun$17$$anon$1 and org.scalatestplus.easymock.EasyMockSugarSpec$$anonfun$17$$anon$1$$anonfun$3$OneFish$3 disagree on InnerClasses attribute

README.md

@@ -3,20 +3,20 @@
 
  **Usage**
 
-To use it for ScalaTest 3.2.15 and EasyMock 4.3.x: 
+To use it for ScalaTest 3.2.15 and EasyMock 5.0.x: 
 
 SBT: 
 
 ```
-libraryDependencies += "org.scalatestplus" %% "easymock-4-3" % "3.2.15.0" % "test"
+libraryDependencies += "org.scalatestplus" %% "easymock-5-0" % "3.2.15.0" % "test"
 ```
 
 Maven: 
 
 ```
 <dependency>
   <groupId>org.scalatestplus</groupId>
-  <artifactId>easymock-4-3_2.13</artifactId>
+  <artifactId>easymock-5-0_2.13</artifactId>
   <version>3.2.15.0</version>
   <scope>test</scope>
 </dependency>

build.sbt

@@ -1,7 +1,7 @@
 import java.io.PrintWriter
 import scala.io.Source
 
-name := "easymock-4.3"
+name := "easymock-5.0"
 
 organization := "org.scalatestplus"
 
@@ -28,12 +28,12 @@ developers := List(
 
 scalaVersion := "2.13.10"
 
-crossScalaVersions := List("2.10.7", "2.11.12", "2.12.17", "2.13.10", "3.1.3")
+crossScalaVersions := List("2.11.12", "2.12.17", "2.13.10", "3.1.3")
 
 resolvers += "Sonatype OSS Snapshots" at "https://oss.sonatype.org/content/repositories/snapshots"
 
 libraryDependencies ++= Seq(
-  "org.easymock" % "easymock" % "4.3",
+  "org.easymock" % "easymock" % "5.0.1",
   "org.scalatest" %% "scalatest-core" % "3.2.15", 
   "org.scalatest" %% "scalatest-funsuite" % "3.2.15" % "test", 
   "org.scalatest" %% "scalatest-flatspec" % "3.2.15" % "test",