K 10
svn:author
V 4
bapt
K 8
svn:date
V 27
2013-03-05T13:31:06.982987Z
K 7
svn:log
V 427
Add the ability to correctly read pkg.conf is exists.

Only look for boostrap useful options:
 - PACKAGESITE
 - ABI
 - MIRROR_TYPE
 - ASSUME_ALWAYS_YES

While here makes PACKAGESITE expand the ${ABI} variable.
Allow to deactivate any SRV record look up (MIRROR_TYPE=none)
Use the same mechanism as for pkgng itself: first get configuration out of
environment variable and fallback on pkg.conf if exists.

Reviewed by:	bdrewery

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