Fixed problem where path was escaped multiple times

[ihuk]

This pull requests fixes problem where create directory and upload requests would not work if path contained characters that need escaping.

Problem is in the code below that uses self.path which is already escaped to set up listing request which escapes is for the second time:

self.listrequest = [[GRListingRequest alloc] initWithDelegate:self datasource:self];
self.listrequest.path = [self.path stringByDeletingLastPathComponent];

[xfally]

+1 for this issue. I also noticed #27 had reported it ago.

When I debug my App, the same error 'File or directory not available or directory already exists.' is thrown. Then I located the bug at the same codes, but fix it by another way:

self.listingRequest.path = [[self.path stringByDeletingLastPathComponent] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

Just take it back to UTF-8 without escapes, so no other codes need modified.