rework of LGAutoPkgTask
	-- first pass at thread safety
	-- moved numerous items from ivars to properties
	-- implemented proxy support
	-- tmp file cleaned up after autopkg run
second pass refinements
    -- move task out of init and into launch method
    -- set in custom run loop mode
    -- set lock during error creation
    -- remove unnecessary NSRecursiveLock
    -- locked cancel method
Fixed minor typos.
Merge branch 'LGAutoPkgTask-Improvements' of https://github.com/lindegroup/autopkgr into LGAutoPkgTask-Improvements
clean up progress messaging
reset JSS_VERIFY_SSL to true each time JSS info changes.
Merge branch 'LGAutoPkgTask-Improvements' into casper-love-touchup

Conflicts:
	AutoPkgr/LGAutoPkgTask.m