[CDF-206] Refactor CDF into cdf-core, cdf-pentaho, cdf-pentaho5
	- cleaned unecessary comments and debugging echos in build.xml
	- edited CDF_RESOURCES_BASE_URL in build.properties
	- legacy fallback ContextEngine also includes solution in Dashboard.context
Merge pull request #97 from afrjorge/CDF-206

[CDF-206] Refactor CDF into cdf-core, cdf-pentaho, cdf-pentaho5