mbed.h: No such file or directory with mbed new --mbedlib

`mbed new --mbedlib` not expand .h files.

Does `https://mbed.org/users/mbed_official/code/mbed/builds/3a7713b1edbc` has problem?

```
C:\mbed>mbed new test --mbedlib
[mbed] Creating new program "test" (git)
[mbed] Adding library "mbed" from "https://mbed.org/users/mbed_official/code/mbed/builds" at branch/tag "tip"
[mbed] Unpacking library build "3a7713b1edbc" in "C:\mbed\test\mbed"
[mbed] Unpacking library build "3a7713b1edbc" in "C:\mbed\test\mbed"
[mbed] Updating reference "mbed" -> "https://mbed.org/users/mbed_official/code/mbed/builds/3a7713b1edbc"
[mbed] Couldn't find build tools in your program. Downloading the mbed 2.0 SDK tools...

C:\mbed>cd test

C:\mbed\test>notepad main.cpp

C:\mbed\test>mbed compile -t GCC_ARM -m LPC11U35_401
Building project test (LPC11U35_401, GCC_ARM)
Scan: test
Compile [100.0%]: main.cpp
[Fatal Error] main.cpp@1,18: mbed.h: No such file or directory
[ERROR] .\main.cpp:1:18: fatal error: mbed.h: No such file or directory
#include "mbed.h"
^
compilation terminated.

[mbed] ERROR: "c:\python27\python.exe" returned error.
Code: 1
Path: "C:\mbed\test"
Command: "c:\python27\python.exe -u C:\mbed\test\.temp\tools\make.py -t GCC_ARM -m LPC11U35_401 --source . --build .\BUILD\LPC11U35_401\GCC_ARM"
Tip: You could retry the last command with "-v" flag for verbose output
---

C:\mbed\test>
```