Update the webpage (#1820)

* Add docs of extensions
  * Use `category` to distinct dropdown pages
  * Sort the documents alphabetical

JerryScript-DCO-1.0-Signed-off-by: Zsolt Borbély zsborbely.u-szeged@partner.samsung.com

05.PORT-API.md

@@ -1,6 +1,7 @@
 ---
 layout: page
 title: Port API
+category: documents
 permalink: /port-api/
 ---
 
@@ -44,20 +45,6 @@ typedef enum
 These are the only I/O functions jerry calls.
 
 ```c
-/**
- * Print a string to the console. The function should implement a printf-like
- * interface, where the first argument specifies a format string on how to
- * stringify the rest of the parameter list.
- *
- * This function is only called with strings coming from the executed ECMAScript
- * wanting to print something as the result of its normal operation.
- *
- * It should be the port that decides what a "console" is.
- *
- * Example: a libc-based port may implement this with vprintf().
- */
-void jerry_port_console (const char *fmt, ...);
-
 /**
  * Jerry log levels. The levels are in severity order
  * where the most serious levels come first.
@@ -142,19 +129,6 @@ void jerry_port_fatal (jerry_fatal_code_t code)
 #include <stdarg.h>
 #include "jerryscript-port.h"
 
-/**
- * Provide console message implementation for the engine.
- */
-void
-jerry_port_console (const char *format, /**< format string */
-                    ...) /**< parameters */
-{
-  va_list args;
-  va_start (args, format);
-  vfprintf (stdout, format, args);
-  va_end (args);
-} /* jerry_port_console */
-
 /**
  * Provide log message implementation for the engine.
  *