Dutch translation for Xposed

This translation is updated on 30 november 2013 for Xposed version 2.4
Added Korean Translation (by marbulas@XDA)
Czech language updated for 2.4

Closes #64
Merge pull request #66 from GertlilyNL/patch-1

Dutch translation for Xposed
Merge pull request #67 from marbulas/master

Added Korean Translation (by marbulas@XDA)
Fixed some issues with Dutch translation
Use the correct language code for Korean

See #67. Korea has country code kr, but language code ko.
Language code kr actually stands for Kanuri.
Added Azeri Translation (by Hero355)

Close #68
Fixed Turkish accented chars
Updated Korean translation, fixes #69
bin v47: don't inline dvmSetObjectArrayElement()
Update French translation

Closes #70
Move "none" string to donottranslates.xml
bump version to 2.4.1
add two little methods for utils
Display version of available framework update
Rewrite installation process with interactive su shell

The main benefit is better error handling, especially detection of failure
to get root access.
Don't reinvent the wheel when concatinating text
Move version displaying to separate function
Handle install buttons asynchronously