Log function detect OSX system language and OpenGL version incorrectly

Log function detect OSX system language and OpenGL version incorrectly
By default, Stellarium should display in the language that system is using....But on OSX, Stellarium cannot detect the system language.
The OpenGL version supported by my macbook air mid-2012 should be up to 4.1, but stellarium display it as 2.1

My Log:
2014-04-11T21:08:52
Mac OS X 10.9 series
Compiled using Clang 5.1.0
Qt runtime version: 5.2.1
Qt compilation version: 5.2.1
Addressing mode: 64-bit
Model Name: MacBook Air
Model Identifier: MacBookAir5,2
Processor Name: Intel Core i5
Processor Speed: 1.8 GHz
Number of Processors: 1
Memory: 4 GB
Chipset Model: Intel HD Graphics 4000
VRAM (Total): 1024 MB
/Applications/Stellarium.app/Contents/MacOS/stellarium
 -------------------------------------------------------
[ This is Stellarium 0.13.0 - http://www.stellarium.org ]
[ Copyright (C) 2000-2014 Fabien Chereau et al ]
 -------------------------------------------------------
Writing log file to: "/Users/Henry/Library/Application Support/Stellarium/log.txt"
File search paths:
  0 . "/Users/Henry/Library/Application Support/Stellarium"
  1 . "/Applications/Stellarium.app/Contents/Resources"
Config file is: "/Users/Henry/Library/Application Support/Stellarium/config.ini"
Couldn't load translations for language "system"
Empty translation file for language "system"
OpenGL versions supported: "1.1, 1.2, 1.3, 1.4, 1.5, 2.0, 2.1"
Driver version string: "2.1 INTEL-8.24.11"
GL vendor is "Intel Inc."
GL renderer is "Intel HD Graphics 4000 OpenGL Engine"
Cache directory is: "/Users/Henry/Library/Caches/stellarium/stellarium"
Couldn't load translations for language "C"
Empty translation file for language "C"
Sky language is "C"
Couldn't load translations for language "C"
Empty translation file for language "C"
Application language is "C"
Loading Solar System data ...
Loading star data ...
"Loading "/Applications/Stellarium.app/Contents/Resources/stars/default/stars_0_0v0_4.cat": 0_0v0_4; 4979"
"Loading "/Applications/Stellarium.app/Contents/Resources/stars/default/stars_1_0v0_4.cat": 1_0v0_4; 21800"
"Loading "/Applications/Stellarium.app/Contents/Resources/stars/default/stars_2_0v0_4.cat": 2_0v0_4; 150779"
"Loading "/Applications/Stellarium.app/Contents/Resources/stars/default/stars_3_1v0_3.cat": 3_1v0_3; 428466"
Finished loading star catalogue data, max_geodesic_level: 3
navigation/preset_sky_time is a double - treating as jday: 2.45151e+06
Loaded 10051 NGC records
Loading NGC name data ...
Loaded 414 / 414 NGC name records successfully
Use vertex shader for atmosphere rendering.
Loading star names from "/Applications/Stellarium.app/Contents/Resources/skycultures/western/star_names.fab"
Loaded 237 / 237 common star names
Loading star names from "/Applications/Stellarium.app/Contents/Resources/stars/default/name.fab"
Loaded 4359 / 4359 scientific star names
Loading variable stars from "/Applications/Stellarium.app/Contents/Resources/stars/default/gcvs_hip_part.dat"
Loaded 6886 / 6886 variable stars
Loaded 88 / 88 constellation records successfully for culture "western"
Loaded 85 / 85 constellation art records successfully for culture "western"
Loaded 89 / 89 constellation names
Loading constellation boundary data ...
Loaded 782 constellation boundary segments
StelPainter: initGLShaders()...
StelPainter: initGLShaders()... done
Creating GUI ...