Add legal.realtek.license_ack=1 to our loader.conf.pcbsd file

Trac: #863
Merge branch 'master' of github.com:pcbsd/pcbsd
Add some initial JSON parsing to pc-pkgmanager for reading the new
PKGNG status updates from EVENT_PIPE
Cleanup how we handle conflict detection during package upgrades,
display output of pkg detection
Make sure to export EVENT_PIPE before running conflict detection
Fix pc-extractoverlay, make sure to cleanup pkg/repos/pcbsd.conf after
extracting ports
Disable the use of pkgng's EVENT_PIPE for our package GUI, using it causes
pkgng to segfault everytime we try to install packages :(

Once they fix this upstream we can re-enable and test it further
Latest version of 10 Handbook draft.
Update the new EasyPBI so that the backend is completely functional now. All of the module editor functionality is now up and working, I just need to update all the EasyPBI simplification buttons so they are available again with the package information system instead of the ports info system. I also still need to get the PBI building functionality up and running.
Merge branch 'master' of github.com:pcbsd/pcbsd
Remove the linux C6 base for now, its just not stable enough to be used
for 10 in prime-time
Merge branch 'master' of github.com:pcbsd/pcbsd