Update SatelliteContracts.cs
Update SatelliteContracts.cs

Spelling, grammar, and phrasing
Update ResearchContracts.cs

Spelling, grammar, and phrasing
Update RepairContracts.cs

Spelling, grammar, and phrasing
Update HistoricContracts.cs

Spelling, grammar, and phrasing
Update HistoricContracts.cs
Update Agents.cfg

Fixed description text for spelling, grammar, and phrasing.
Update HistoricContracts.cs

Spelling, grammar, & phrasing
Update CivilianContracts.cs

Spelling, grammar, and phrasing
Merge pull request #10 from Castun/master

Spelling and grammar checking for contract descriptions done by Castun.