- Fixed hidden towns and sam sites a dead giveaway when calling info box in strategic screen (by Buggler)

git-svn-id: https://ja2svn.dyndns.org/source/ja2/trunk/GameSource/ja2_v1.13@6604 3b4a5df2-a311-0410-b5c6-a8a6f20db521
Externalized heli refuel sites (by Buggler)
- Map\HeliSites.xml

git-svn-id: https://ja2svn.dyndns.org/source/ja2/trunk/GameSource/ja2_v1.13@6605 3b4a5df2-a311-0410-b5c6-a8a6f20db521
Small changes and fixes for grenades and explosives (by Sevenfm)
1) Fixed small bug when MAPELEMENT_PLAYER_MINE_PRESENT was set after planting explosives with remote detonator.
2) Arming bomb with only remote defuse attached is not allowed. 
3) Showing item locator before "add blueflag" messagebox is disabled for our mines as it was annoying and you anyway know that it is here.
4) Total weight for throwing range is calculated for all items (previously it was calculated only for grenades).
5) Grenade-throwing formula and demolitions bonus applied only for hand-thrown grenades (check for TOSSCURS). Previously it was applied for launched grenades too.
6) Changed grenade throwing range formula from

git-svn-id: https://ja2svn.dyndns.org/source/ja2/trunk/GameSource/ja2_v1.13@6606 3b4a5df2-a311-0410-b5c6-a8a6f20db521