[slf4j-dev] new indentation style

[Ceki Gülcü]

Hi All,

I've added a new and experimental indentation style under 
.idea/codeStyleSettings.xml. Essentially it uses 4 spaces instead of 2 
previously for indentation. It seems to me that 4 spaces are more common 
in the java world than 2.

I've applied the new indentation to 
slf4j-api/src/main/java/org/slf4j/helpers/Util.java

If there is support for this change, I'll apply the new style to the 
whole project.

Your comments are welcome.

--
Ceki