Cleaned up how add_essentia and spend_essentia are called
Fixed compile errors
Fixed bug with Essentia creation
Got essentia calculations correct
Couple minor errors.
Added Essentia tracking, fixed Evein update issue
/admin/ don't default search to leading '%' - allow user to add '*' or '%' anywhere
admin function to view login history
admin / e-log link to from-empire
stats bug fix - passing DateTime object to search() doesn't DWIM
/admin/ empire view - link to home planet
/admin/ "finish all builds" now calls $building->finish_upgrade()
/admin/ "become this empire" no longer updates empire last_login()
add is_sitter to login-logs, and admin login log viewer
/admin/ function to add a building bypassing normal requirements + costs
admin/add-building check plot is empty and add a lock on it
admin/move-building check plot is empty and add a lock on it
log all empire name changes + admin function to view them
/admin/ display E-type values
/admin/ add pagination to login log