config: Properly fix ssl-parameters.dat handling It was done only partially right in a70d867d1fe3584149811c65eb6213deb72be824

doveconf: Preserve import_environment when execing binary This allows import_environment setting to work with doveadm and other standalone tools.

config: Support looking up config for multiple modules at the same time.

Removed all the "enum foo;" declarations. They didn't seem to be very standard. Old gcc versions warn about them and C++ code doesn't like them.

Marked functions parameters that are allowed to be NULL. Some APIs were also changed. The non-obvious APIs where NULL parameter was changed to "" are master_service_init() and auth_master_user_list_init(). These checks can currently be enabled only on a patched clang: http://llvm.org/bugs/show_bug.cgi?id=6786

doveconf: Show protocol/remote/local sections. --HG-- branch : HEAD

lib-master: Added support for caching config lookups. Currently caching won't work if config has any remote {} blocks. --HG-- branch : HEAD

config: $setting as value returns the setting's current value. --HG-- branch : HEAD

doveconf: Dump config to stdout even when there are errors, just show them afterwards. --HG-- branch : HEAD

Previous config change broke master's startup. --HG-- branch : HEAD

doveconf -n/-a: Don't dump default service settings. This code is just getting uglier and uglier.. --HG-- branch : HEAD

config: Several fixes. Now per-ip settings work properly. doveconf parameters were also changed. Now it's possible to ask configuration for a specified filter. --HG-- branch : HEAD

doveconf -N dumps only settings that have been explicitly set. --HG-- branch : HEAD

config handling fixes and improvements. Separated module/service lookups. Added support for per-lip/rip settings. --HG-- branch : HEAD

Split doveconf and libexec/dovecot/config binaries. --HG-- branch : HEAD

doveconf: With -p only protocol-specific settings are returned. -n and -a return human-readable output. --HG-- branch : HEAD