[CDE-266] access denied while creating folder with name "cde"
	- ensureBasicDirs() now delegates the file/folder creation responsibility to each of the CDE environments
[CDE-266] access denied while creating folder with name "cde"
	- ensureDirExists / ensureFileExists renamed to createBasicDirIfNotExists / createBasicFileIfNotExists
	- added javadoc stating the purposes of these methods
	- for CDE 5 the javadoc states that these operation are done under SecurityHelper.runAsAdmin()
Merge pull request #88 from pedrofvteixeira/CDE-266

[CDE-266] access denied while creating folder with name "cde"