- Copy stable/10@285827 to releng/10.2 in preparation for 10.2-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.2.
- Update default pkg(8) configuration to use the quarterly branch.[1]

Discussed with: re, portmgr [1]
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r263105, r263106:

r263105:
Add hyperv manual pages provided by Microsoft, formatted
for FreeBSD standards. Very little, if any, content was
modified.

r263106:
Connect the hyperv driver manuals to the build.

Sponsored by: The FreeBSD Foundation

Add hyperv manual pages provided by Microsoft, formatted
for FreeBSD standards. Very little, if any, content was
modified.

These are not yet linked to the build.

Submitted by: Abhishek Gupta (abgupta!microsoft dot com)
Sponsored by: The FreeBSD Foundation