Bumped version of scala maven plugin

Previous version was not handling correctly 2.11.0-SNAPSHOT and
2.11.0-M5 Scala library versions.
Bumped version of tycho plug-in
Adds null check for default bootclasspath

Fixes #33
Updated to build 3.0.3 with scala 2.10.4 and 4.0 milestone for scala 2.11 to use scala 2.11.0-M8, and added build profile for 3.0.4 that uses scala 2.11.0 final.
Adjusted scala version in pom.xml, and created profile for 3.0.x build for scala 2.11.0.
Fixed broken pom.xml.
Updated repo URL of 3.0.4 for scala 2.11.0, and changed the build order in ecosystem-build.sh.
Changed to build 3.0.4 for scala 2.11.0 using kepler-nightly-2.11 branch.
Changed to build 3.0.4 for scala 2.11.0 final with 2.11 branch.
Updated builds to use scala 2.10.4 and 2.11.1.
Fixed incorrect scala version for 4.0 (2.11).
Added build for luna in ecosystem-build.sh.
Add the luna build to be included in the combined site.
Fixed wrong url for luna build.
Updated README.rst.
Merge branch 'issue/default-bootclasspath-33' of git://github.com/skyluc/scalatest-eclipse-plugin
Merge branch 'misc' of git://github.com/dotta/scalatest-eclipse-plugin

Conflicts:
	pom.xml
Changed to build e44-scala211-4.0 with profile scala-ide-4.0-2_11-luna.
Tweaked ecosystem-build.sh for luna build.
Build for luna.