Fix Short-Description in pdns-recursor.init.d

S-D is used to display what's going on in at least some init systems,
so make it a bit more descriptive.
Remove --bare from zone2sql man page

This option does not exist.
Remove unused pathconfig files

Apparently from 1.x binary installer area.
Remove unused precursor init script

There's another one in pdns_recursor.init.d, which is the one that's
actually distributed.
Remove duplicate README file
Remove old TODO files
Remove duplicate INSTALL file
Remove godbcbackend
Remove mostly nonfunctional diff. in gsqlbackends

Makes for easier diffing of g*sqlbackend code
Add missing insert queries to goraclebackend

Untested because I have no Oracle install.
Merge pull request #1056 from zeha/f/stuff

Miscellanea
Merge pull request #1057 from zeha/f/remove-godbc

Remove godbcbackend
Merge pull request #1059 from zeha/reduce-gsql-diff

Reduce gsql bitrot