A little optimized suggestions

[zhangbo]

In CSApiManager.m

In these methods:
-(void) apiGETCallWithURL:(NSString*)url
indicatorVC:(CSBaseViewController*)vc
toShowIndicator:(BOOL)toShow
toHideIndicator:(BOOL)toHide
completition:(apiCallFinish)finish

-(void) apiPOSTCallWithUrl:(NSString*)url
parameters:(NSDictionary*)params
indicatorVC:(CSBaseViewController*)vc
toShowIndicator:(BOOL)toShow
toHideIndicator:(BOOL)toHide
completition:(apiCallFinish)finish {

encode the url string:
url = [url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

In order to avoid app crash by containing special characters in url such as Chinese.