for scala 2.10.0


1) updated versions for scala, scalatest, specs(2), surefilre, scala-maven-plugin.
2) also, previously the versions of specs(2) and scalatest had the version of scala library as part of it. But, unfortunately the latest versions of these two use the  major.minor version only in the names. i.e the latest specs(2) is "specs2_2.10". So, i have introduced another maven property to deal with it.
3) Was not sure about the real need for the #set($scalaVersion) templating. So, have removed that also.