Made change so Boo can compile on .NET 4.0
Made change so Boo can compile on .NET 4.0

BillHally/boo,BitPuffin/boo,BillHally/boo,rmartinho/boo,BITechnologies/boo,hmah/boo,BitPuffin/boo,hmah/boo,Unity-Technologies/boo,boo-lang/boo,bamboo/boo,scottstephens/boo,wbardzinski/boo,KidFashion/boo,BillHally/boo,Unity-Technologies/boo,KingJiangNet/boo,rmartinho/boo,KingJiangNet/boo,scottstephens/boo,rmartinho/boo,BITechnologies/boo,rmboggs/boo,boo-lang/boo,wbardzinski/boo,rmboggs/boo,rmartinho/boo,BitPuffin/boo,Unity-Technologies/boo,wbardzinski/boo,boo-lang/boo,bamboo/boo,scottstephens/boo,drslump/boo,hmah/boo,rmboggs/boo,BITechnologies/boo,BillHally/boo,wbardzinski/boo,Unity-Technologies/boo,BITechnologies/boo,scottstephens/boo,BitPuffin/boo,bamboo/boo,boo-lang/boo,rmboggs/boo,BITechnologies/boo,BitPuffin/boo,hmah/boo,KidFashion/boo,drslump/boo,BitPuffin/boo,KingJiangNet/boo,drslump/boo,scottstephens/boo,rmboggs/boo,BitPuffin/boo,hmah/boo,BITechnologies/boo,hmah/boo,boo-lang/boo,boo-lang/boo,Unity-Technologies/boo,KidFashion/boo,drslump/boo,wbardzinski/boo,scottstephens/boo,BillHally/boo,BitPuffin/boo,rmartinho/boo,KidFashion/boo,Unity-Technologies/boo,wbardzinski/boo,rmboggs/boo,rmartinho/boo,wbardzinski/boo,hmah/boo,drslump/boo,KidFashion/boo,Unity-Technologies/boo,bamboo/boo,rmartinho/boo,rmboggs/boo,BillHally/boo,KingJiangNet/boo,bamboo/boo,KingJiangNet/boo,hmah/boo,drslump/boo,hmah/boo,drslump/boo,boo-lang/boo,BITechnologies/boo,KidFashion/boo,rmartinho/boo,bamboo/boo,wbardzinski/boo,KingJiangNet/boo,BITechnologies/boo,KingJiangNet/boo,scottstephens/boo,boo-lang/boo,KingJiangNet/boo,rmboggs/boo,scottstephens/boo,KidFashion/boo,BillHally/boo,bamboo/boo,Unity-Technologies/boo