remove framework requirement for system.core
remove framework requirement for system.core

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