initial commit using a very minimalistic db abstraction preparing to add postgresql support as well

added a tweak option to change the sent time piler stores

code clean up in folder.c

eliminated the mydomains piler.conf

introduced the server_id variable

parse the Delivery-date: header field if the Date: field is missing

finalized google free apps support

added an option for verbose pilerimport messages

added recursive folder support to pilerimport

added folder support for piler daemon and pilerimport

improved message parsing

updated the build process to support solaris 11

fixed pilerimport return values

added a reindexing utility

pilerimport can retrieve messages from imap4 servers, too