Modified intent of ts_db_records. timestamp value is no longer a
{Date, Time} value, it is now gregorian seconds since year 0.
This was done to make queries that are based on date comparisons
easier to write and more efficient.
Added date time comparison function to ts_common.
Implemented update/1 and list/3 for ts_entry.
Added Makefile, id_counter.erl, and yaws.conf.
Created ts_common module. Will contain common DB code. So far only list/3.
Created ts_timeline module. DB code for storing timeline entries.
Created ts_entry module, DB code for storing timelin entries.