Merge pull request #1 from fouvy/master

add .net 3.5 compatible
更新版API
更新C#版API
Normalize line endings
C版接口更新，支持做市商应价
C#版接口更新，支持做市商应价
做市商接口更新
API更新
C版做市商接口更新
C#版做市商接口更新
做市商接口更新
Merge pull request #1 from QuantBox/master

update