Make setting of vfe->priv* fields something callers of VFP_Push() does.
Introduce a vfp_ctx structure to hold the context for fetch-filters.
Eliminate some trival VFP uses of busyobj.
Don't rely on busyobj for cheap optimization
An OCD a day keeps the white-space away...
Wrap the list of storage segments in a "struct body"
Remove nitpicking mode (-n) for sphinx-build.

sphinx-build v0.6.6 which is on RHEL6/CentOS6 does not know about -n,
so we'll have to do without it for now.

Reported in:	#1535