Balance negative penalties to strategies

[jrossignol]

Add some downsides to some strategies. Suggestions from ibanix:

Some of the strategies are a lot more generous than others:

"To Boldly Go" has no downsides except for the startup costs, which are really not bad at all. It could use some sort of drawback, such as -X% less funds from non-science contracts, or -X% reputation to contracts in a celestial/biome you've already visited. You're trying to Boldly Go somewhere new, right?

The same problem exists for "Local Science", because you can get a stupidly huge amount of science just from KSC/Kerbin alone, with no downsides. I'd suggest something like a large -X% funds modifier to all contract rewards while in effect. Another idea would be that a certain amount of science has to be collected from Kerbin to satisfy Local Science; if you drop the strategy before reaching this goal, you forefit lots of funds/reputation/science.