Added Compiler Flag for CreateDirectoriesIfNeeded
Added Compiler Flag for CreateDirectoriesIfNeeded

This is needed because this functionality does not exist for
Silverlight.

tmusico/NLog,pwelter34/NLog,hubo0831/NLog,matteobruni/NLog,UgurAldanmaz/NLog,michaeljbaird/NLog,breyed/NLog,vbfox/NLog,MartinTherriault/NLog,MoaidHathot/NLog,campbeb/NLog,ie-zero/NLog,ArsenShnurkov/NLog,Niklas-Peter/NLog,MoaidHathot/NLog,ajayanandgit/NLog,nazim9214/NLog,ie-zero/NLog,AndreGleichner/NLog,zbrad/NLog,luigiberrettini/NLog,RRUZ/NLog,RichiCoder1/NLog,BrutalCode/NLog,ArsenShnurkov/NLog,czema/NLog,RichiCoder1/NLog,tmusico/NLog,RRUZ/NLog,Niklas-Peter/NLog,babymechanic/NLog,304NotModified/NLog,pwelter34/NLog,breyed/NLog,tohosnet/NLog,UgurAldanmaz/NLog,BrutalCode/NLog,kevindaub/NLog,zbrad/NLog,snakefoot/NLog,tetrodoxin/NLog,FeodorFitsner/NLog,NLog/NLog,bryjamus/NLog,tetrodoxin/NLog,vbfox/NLog,ajayanandgit/NLog,matteobruni/NLog,littlesmilelove/NLog,bjornbouetsmith/NLog,ilya-g/NLog,sean-gilliam/NLog,nazim9214/NLog,rajeshgande/NLog,babymechanic/NLog,hubo0831/NLog,MartinTherriault/NLog,AndreGleichner/NLog,czema/NLog,kevindaub/NLog,czema/NLog,luigiberrettini/NLog,michaeljbaird/NLog,rajeshgande/NLog,littlesmilelove/NLog,ilya-g/NLog,czema/NLog,FeodorFitsner/NLog,bjornbouetsmith/NLog,bryjamus/NLog,tohosnet/NLog,bhaeussermann/NLog,campbeb/NLog,bhaeussermann/NLog