CMS default language not working correctly instead of english I see czech

What steps will reproduce the problem?
1. Use vosao from SVN /Trunk version 0.9.14 (SVN revision 1150)
2. Compile and run from source code
3. Run application on localhost app server
4. I use firefox browser with czech language.
5. Select CMS login page http://localhost:8888/cms/
6. Try to select english language.

What is the expected output? What do you see instead?
Show CMS pages with english language. Instead I see page with czech language. 
Maybee this problem should ocure only when you use web browser with national 
language different than english(In my examle czech). When I run my application 
on appspot.com server then everithing work OK.

I know how to fix this:
Iwe create file 
\trunk\kernel\src\main\resources\org\vosao\resources\messages_en.properties 
this is 1:1 copy of file messages.properties in same folder.

I think this is bug but Im not vosao developer to prove that.

Original issue reported on code.google.com by jaromir....@aszol.cz on 8 Jul 2012 at 9:02

Merged into: #566

zillo32 / vosao

CMS default language not working correctly instead of english I see czech #569