Added missing / to closing </td> for Last Update
Process config file includes

If any Include lines are found in the config file, the included file
is read and its contents are added to the config file array.
Added parsing of last access time (LastTime)

The awstats data files include LastTime in addition to LastUpdate. This
field is now pulled from the file and added to the overview page.
PR 1 fix: ordered processing for Include statements
@file_parsed initialized as empty list