Review request for 8025985: com.sun.management.OSMBeanFactory should not be public

[Mandy Chung]

com.sun.management API is an exported API [1] except 
com.sun.management.OSMBeanFactory class which is an 
implementation-specific class and it's currently annotated as 
@jdk.Exported(false) [2].  This patch will eliminate one use of 
@jdk.Exported(false).

This is simply refactoring of the existing implementation:
o remove com.sun.management.OSMBeanFactory
o move the implementation classes to sun.management including
   - rename com.sun.management.UnixOperatingSystemImpl (or 
OperatingSystem windows version) to sun.management.OperatingSystemImpl 
along with its native implementation
   - sun.management.ManagementFactoryHelper creates the 
sun.management.OperatingSystemImpl instance directly (no need of the 
factory OSMBeanFactory method)

I'm including build-dev as there are changes in the makefiles.

Webrev at:
http://cr.openjdk.java.net/~mchung/jdk8/webrevs/8025985/webrev.00/

thanks
Mandy
[1] 
http://download.java.net/jdk8/docs/jre/api/management/extension/index.html
[2] http://hg.openjdk.java.net/jdk8/tl/jdk/rev/2ea162b2ff55