Refactor RBusinessManager 

extract rservi = rsmanager.getRServi() from the constructor into getInitR() method
Add evalS(command, servi) method
change eval(command) to eval(command, servi)
Adapt RThread to changes in RBusinessManger
Logging changed back
Restore the old eval(String command) method
Start adapting to changes in walware
Adapt to RJ version 2.0

also solves bug 3518
Update walware feature for RJ version 2.0
Merge pull request #1 from bioclipse/bug3518

Bug3518