lib-master: Add stats-client Enable it if MASTER_SERVICE_FLAG_SEND_STATS is set

lib-master: Add log_debug setting lib-master understands only the global log_debug setting, which is passed to it via environment from master process, or alternatively via doveconf when executing standalone programs. Any per-user log_debug settings need to be handled explicitly elsewhere.

master: Move import_environment setting to lib-master's master_service_settings

global: unsigned int:1 -> bool:1 perl -i -pe 's/unsigned int ([^,:;]+):1;/bool $1:1;/' **/*.[ch]

lib-master: Added support for HAProxy protocol. Patch by Stephan Bosch - with some small changes.

lib-master: Added master_service_settings_output.permission_denied error flag.

lib-master: If MASTER_SERVICE_FLAG_KEEP_CONFIG_OPEN is set, open the config socket before dropping privileges.

Renamed network.[ch] to net.[ch]. The function prefixes already started with net_ instead of network_. And icecap wants to use network.h for other purpose. :)

Read SSL settings only if service has SSL sockets or MASTER_SERVICE_FLAG_USE_SSL_SETTINGS.

Made PKG_STATEDIR configurable with state_dir setting. Based on patch by Chris Webb. Normally this isn't needed, since the data in the state_dir can be shared across multiple Dovecot instances, but in some specific use cases this may be useful (e.g. users running their own Dovecots).

Moved ssl_* settings from login-common to lib-master. This allows creating other SSL servers more easily.

lib-master: Added base_dir to master_service_settings.

lib-master: Added and used MASTER_SERVICE_INTERNAL_SET_PARSERS macro.

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

Added import_environment setting. This also cleans up different places in code where TZ and other environments are preserved. If it's not in the import_environment setting, it's not preserved.

lib-master: Added missing master_service_get_settings_parser() required by recent change.

lib-master: Added MASTER_SERVICE_FLAG_UPDATE_PROCTITLE for showing number of connections in ps. The title is still only updated if verbose_proctitle=yes, so this allows binaries to easily just set the flag and lib-master handles the rest.

lib-master: Added support for parse_full_config input option for settings parsing.

lda: If doveconf fails, make it exit with EX_TEMPFAIL.

config: local_name foo {} is now for TLS SNI. local foo {} only resolves foo to its IP. --HG-- branch : HEAD

Fixed memory leak when parsing settings. --HG-- branch : HEAD

lib-master: Added master_service_set_has_config_override(). --HG-- branch : HEAD

Dynamic settings parser allocation logic was wrong. Default setting structures were being cleared after settings parser pool was freed. --HG-- branch : HEAD

config: Send client a services names that have more specific settings. --HG-- branch : HEAD

lib-master: Added never_exec flag to master_service_settings_read(). --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

lib-master: Support local_host and remote_host in config lookups. --HG-- branch : HEAD

Changed all settings related structs to const and changed APIs to make it work. --HG-- branch : HEAD

Handle shutdown_clients globally for all services. Delay shutting down processes until it's convenient for them, but if they're not gone in 30 seconds forcibly stop. And if that doesn't help, master will start killing them in 60 seconds. --HG-- branch : HEAD

Added debug_log_path setting and i_debug() call. Patch by Pascal Volk. --HG-- branch : HEAD

master: Support reloading configuration. --HG-- branch : HEAD

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

mail processes now specify user/lip/rip in config requests. --HG-- branch : HEAD

config: Give master service settings to all requests. --HG-- branch : HEAD

Compiler warning fix. --HG-- branch : HEAD

Added master_service_set(). --HG-- branch : HEAD

Added lib-master and mail-storage-service code that makes it easier to build new Dovecot binaries. Currently only the standalone applications (e.g. deliver) uses this. --HG-- branch : HEAD