#9 added PCL project and added to nuspec
re #9 added net45 specs project
tidied up nuget packages
re #9 added hacked portable targets for Mono
switched PCL specs project from net45 to net40 to allow compilation against Mono 2.x
added execution of PCL specs to rakefile
changed PCL profile to Profile2 to include win8 and wp7
suppressed StyleCop in Mono for PCL project
added PCL targets to Source nuspecs
Merge pull request #20 from adamralph/9-pcl

fixes #9 pcl