Coverity fixes
Remove possible devision by zero (coverity fix)
Remove unused parent pointer (coverity fix)
Update gitignore files

* config.cache is configure's cache (if used)
* test-driver is a new autotools script
* bindparser.hh is an intermediate file (gets copied to bindparser.h)
Add suppression file for valgrind, and turn it on

This is tuned for pdns_server, not the recursor.
Merge pull request #961 from zeha/valgrind-supp

Add suppression file for valgrind, and turn it on
Merge pull request #959 from zeha/ignore

Update gitignore files
Merge pull request #950 from cyclops1982/coverity

Coverity fixes
'correct' casing of Content-Type header in error messages
fill in notified_serial and serial in gsql getDomainInfo

Filling in notified_serial is free; the query already fetches
notified_serial, but we didn't copy it over.
We now also always try the SOA lookup to get the domain serial, which
previously only happened in the SLAVE case. This might provoke a few
more notices/errors, but not really for sane database contents.
add convience getKindString to DomainInfo
Merge pull request #962 from zeha/domaininfo

DomainInfo changes
Theoretically support non-GET requests in recursor webserver
Merge pull request #963 from zeha/webserver

Webserver changes
drop unused variables from class Server
Merge pull request #965 from zeha/remove-unused-vars

drop unused variables from class Server