add fid, url to filer post, adjust to changed folder structure

API.md

@@ -302,11 +302,11 @@ Examples:
 ```bash
 # Basic Usage:
 > curl -F file=@report.js "http://localhost:8888/javascript/"
-{"name":"report.js","size":866}
+{"name":"report.js","size":866, "fid":"7,0254f1f3fd","url":"http://localhost:8081/7,0254f1f3fd"}
 > curl  "http://localhost:8888/javascript/report.js"   # get the file content
 ...
 > curl -F file=@report.js "http://localhost:8888/javascript/new_name.js"    # upload the file with a different name
-{"name":"report.js","size":866}
+{"name":"report.js","size":866, "fid":"3,034389657e","url":"http://localhost:8081/3,034389657e"}
 > curl  "http://localhost:8888/javascript/?pretty=y"            # list all files under /javascript/
 {
   "Directory": "/javascript/",

Filer.md

@@ -88,4 +88,4 @@ curl "http://localhost:8888/path/to/sources/?pretty=y"
 curl "http://localhost:8888/path/to/sources/?lastFileName=abc.txt&limit=50&pretty=y"
 ```
 
-The Redis and Cassandra backends are currently implemented as ["flat namespace" stores](https://github.com/chrislusf/seaweedfs/blob/master/go/filer/flat_namespace/flat_namespace_filer.go), so filers using them may not perform directory listings at this time.
+The Redis and Cassandra backends are currently implemented as ["flat namespace" stores](https://github.com/chrislusf/seaweedfs/blob/master/weed/filer/flat_namespace/flat_namespace_filer.go), so filers using them may not perform directory listings at this time.

Large-File-Handling.md

@@ -8,7 +8,7 @@ To support large files, SeaweedFS supports these two kinds of files:
 
 This piece of code shows the json file structure:
 
-https://github.com/chrislusf/seaweedfs/blob/master/go/operation/chunked_file.go#L24
+https://github.com/chrislusf/seaweedfs/blob/master/weed/operation/chunked_file.go#L24
 
 ```
 type ChunkInfo struct {