Added tokens for app control to the Apps_Defaults configuration file.
Added AppsDefaults token checks to the cron java code and scripts.
Updated Executor.start() to load system properties from properties files
in a conf resources properties directory and also to load site specific
properties from a conf resources properties site directory.
Amend:
Removed tabs in MainMethod.java.
Updates from peer review.
Removed old commented out code in ohd cron properties file and commented-out code in MainMethod.execute().
Change-Id: I44e74791dadc9af09c99244d8d099cea581863cc
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