Merge pull request #1199 from hmhealey/plt600

PLT-600 Renamed channel description to channel header and added channel purpose field

model/client.go

@@ -452,8 +452,17 @@ func (c *Client) UpdateChannel(channel *Channel) (*Result, *AppError) {
 	}
 }
 
-func (c *Client) UpdateChannelDesc(data map[string]string) (*Result, *AppError) {
-	if r, err := c.DoApiPost("/channels/update_desc", MapToJson(data)); err != nil {
+func (c *Client) UpdateChannelHeader(data map[string]string) (*Result, *AppError) {
+	if r, err := c.DoApiPost("/channels/update_header", MapToJson(data)); err != nil {
+		return nil, err
+	} else {
+		return &Result{r.Header.Get(HEADER_REQUEST_ID),
+			r.Header.Get(HEADER_ETAG_SERVER), ChannelFromJson(r.Body)}, nil
+	}
+}
+
+func (c *Client) UpdateChannelPurpose(data map[string]string) (*Result, *AppError) {
+	if r, err := c.DoApiPost("/channels/update_purpose", MapToJson(data)); err != nil {
 		return nil, err
 	} else {
 		return &Result{r.Header.Get(HEADER_REQUEST_ID),