Fix typo
Replace autoconf variables with make variables

This has the nice advantage that you can override those
variables at make time instead of configure time.
gsqlbackend: fix includes

gsqlbackend.cc includes gsqlbackend.hh
so remove duplicate includes.

Fix the path to namespaces.hh as well.
add AXFR TSIG key/algorithm mismatch tests
allow TSIG as extra record in an IXFR request
apply AXFR access rules to IXFR
sign IXFR with te right TSIG key
Merge pull request #1609 from rubenk/replace-autoconf-variables-with-make-variables

Replace autoconf variables with make variables
Don't link to zlib

The bindbackend dropped support for
compressed zones in 2007
add kind column to mysql index on domainmetadata
Merge pull request #1616 from mind04/test123

add kind column to mysql index on domainmetadata
Actually check if libcrypto++ is installed
Merge pull request #1615 from rubenk/remove-zlib

Don't link to zlib
Merge pull request #1620 from rubenk/fix-typo-in-docs

Fix typo
Fix build failure under FreeBSD 9.3
Merge pull request #1621 from rubenk/fix-build-failure-under-freebsd

Fix build failure under FreeBSD 9.3
Merge pull request #1613 from mind04/tsig2

tsig tests and ixfr fixes
Merge pull request #1617 from rubenk/actually-check-for-libcrypto++

Actually check if libcrypto++ is installed
remove unused variable g_addSuperfluousNSEC3
Merge pull request #1608 from rubenk/fix-gsqlbackend-includes

gsqlbackend: fix includes