v.1.7 - fixed bug re officer upgrade script

v.1.6

- added a minimum days distance since last event for this script to fire to avoid possible corruption by quest scripts
- added another condition for looping through factions to make the loop more efficient
- localized a few more variables to make the script a bit more efficient
- added check on local table to contain a minimum number of elements so to not break chooserandomfromlist function

v.1.5

- included more conditions for this eventscript to fire: will not fire if number of player cities is below 5, during the first 90 gamedays or if player has less than 2 neighbours

v.1.4

- localized another variable that I had overlooked before

v.1.3

- while the officer upgrade script runs, gamespeed is set to 1 to avoid any errors due to high gamespeed

v.1.2

- localized variables in order to boost performance of the script

v1.1

- AI officer upgrades will progress more smoothly and less jumpy
- AI will select more usefull officers dependent on size vs. player

v1.0 uploaded