move function/time/ functions into plugin(s) for Drizzle

all the time related functions (e.g. UNIX_TIMESTAMP(), DAYOFMONTH(), DAYOFWEEK()) shoudl be moved into one or more plugins/ and out of drizzled/function/. If it should be one plugin or many is still up for discussion. Pitch a reason!

Implement the creation of master.info files for MySQL Proxy

We can now read a master.info file and parse the different values, how about adding the option to write a master.info file based on variables on Lua land?