Reduced turret range values

Reduced Guard Tower weapon range from 6 to 5
Reduced Gun Turret weapon range from 6 to 5
Reduced Sam Site weapon range from 10 to 7
Reduced Advanced Guard Tower weapon range from 8 to 6
Reduced Obelisk of Light weapon range from 8.5 to 6.5
Reduce turret vision & Increase Build Time

Guard Tower
- Reduced vision from 7 to 6
- Increased buildtime from 12s to 24s

Gun Turret
- Reduced vision from 7 to 6
- Increased buildtime from 15s to 30s

SAM Site
- Increased buildtime from 18s to 36s

Advanced Guard Tower
- Reduced vision from 9 to 7
- Increased buildtime from 24s to 48s

Obelisk of Light
- Reduced vision from 8 to 7
- Increased buildtime from 36s to 52s
removed demo.mix
Merge pull request #4750 from Mailaender/demo-mix

Removed demo.mix
Adjusted AA Guns to fire their guns alternately at a high fire rate, and added contrails to their bullets.
Merge pull request #4756 from ScottNZ/aagun

AA gun polish
Merge pull request #4724 from RiderRockon/bleed

Reduced range and increased build time of static defense
Update CHANGELOG

#4724
Rebalanced Viceroids and Tiberium. PR number 4745.
Merge pull request #4745 from Iamgoofball/bleed

Changes to Tiberium and Viceroids
Update CHANGELOG

fix commit b5b98feadb1863694e31f4a60d0d0b41a141a9c1
The out of range cursor is now shown when the actor is outside of firing range of the target.
Replaced the RA attack move cursor.
TODO: Set up out of range cursors for cnc, d2k and ts.