CAR-100: Upgrade to .NET 4.0 instead of 3.5 -- Changing XenAdmin build script to use 4.0 version of msbuild, target framework 4.0
CAR-100: Upgrade to .NET 4.0 instead of 3.5 -- Changing XenAdmin build script to use 4.0 version of msbuild, target framework 4.0

Signed-off-by: Gabor Apati-Nagy <fea1aad7ceb67d3aeb88acb6b51e51467c21418e@citrix.com>

cheng--zhang/xenadmin,ushamandya/xenadmin,GaborApatiNagy/xenadmin,minli1/xenadmin,MihaelaStoica/xenadmin,Frezzle/xenadmin,MihaelaStoica/xenadmin,letsboogey/xenadmin,agimofcarmen/xenadmin,GaborApatiNagy/xenadmin,GaborApatiNagy/xenadmin,robhoes/xenadmin,letsboogey/xenadmin,robhoes/xenadmin,jijiang/xenadmin,Frezzle/xenadmin,geosharath/xenadmin,stephen-turner/xenadmin,huizh/xenadmin,geosharath/xenadmin,stephen-turner/xenadmin,kc284/xenadmin,stephen-turner/xenadmin,ushamandya/xenadmin,minli1/xenadmin,jijiang/xenadmin,agimofcarmen/xenadmin,letsboogey/xenadmin,huizh/xenadmin,MihaelaStoica/xenadmin,cheng-z/xenadmin,kc284/xenadmin,agimofcarmen/xenadmin,qlw/xenadmin,cheng-z/xenadmin,letsboogey/xenadmin,minli1/xenadmin,huizh/xenadmin,MihaelaStoica/xenadmin,cheng--zhang/xenadmin,xenserver/xenadmin,cheng-z/xenadmin,letsboogey/xenadmin,qlw/xenadmin,geosharath/xenadmin,stephen-turner/xenadmin,qlw/xenadmin,robhoes/xenadmin,cheng-z/xenadmin,geosharath/xenadmin,xenserver/xenadmin,robhoes/xenadmin,jijiang/xenadmin,minli1/xenadmin,Frezzle/xenadmin,robhoes/xenadmin,GaborApatiNagy/xenadmin,MihaelaStoica/xenadmin,xenserver/xenadmin,geosharath/xenadmin,letsboogey/xenadmin,kc284/xenadmin,huizh/xenadmin,qlw/xenadmin,GaborApatiNagy/xenadmin,jijiang/xenadmin,cheng--zhang/xenadmin,huizh/xenadmin,cheng-z/xenadmin,jijiang/xenadmin,geosharath/xenadmin,ushamandya/xenadmin,ushamandya/xenadmin,minli1/xenadmin,MihaelaStoica/xenadmin,cheng--zhang/xenadmin,stephen-turner/xenadmin,ushamandya/xenadmin,kc284/xenadmin,kc284/xenadmin,minli1/xenadmin,huizh/xenadmin,Frezzle/xenadmin,Frezzle/xenadmin,agimofcarmen/xenadmin,stephen-turner/xenadmin,agimofcarmen/xenadmin,cheng-z/xenadmin,GaborApatiNagy/xenadmin,cheng--zhang/xenadmin,jijiang/xenadmin,ushamandya/xenadmin,cheng--zhang/xenadmin,Frezzle/xenadmin,qlw/xenadmin,robhoes/xenadmin