Revert "Bump to new traceur"

This reverts commit 6c4a0ef17fd7635cc2559c008a2fe4a9e8a3bcdd.
bumped to v0.2.5 because of a wrong v0.2.4 version in npm
0.0.60
0.0.61
version
Merge pull request #34 from jmcriffey/feature/bump-traceur

traceur 0.0.61 support
fix source maps
check source map files for contents
fix includeRuntime
do not include runtime in tests
Merge pull request #35 from jmcriffey/feature/sourceMaps

Fix source maps
fix register and AMD
0.2.8
fixed repo link
added grunt-contrib-clean
clean tmp before running task
added grunt-mkdir
updated library with more promises and recursive compilation option. Removed includeRuntime option, looked too coupled, better leave it to the user. Cleanup on functions.
0.3.0