tidying
rename directories
rm assemblyinfo from lsm_base
first step of a tree reorg.  move (the cs version of) LSM_base into cs/projects
rename proj
rm assembly info
mv LSM_cs project
compile lsm_cs as net45 as well as pcl
assemblyinfo
mv fs proj
lsm base in fs.  not used yet.
switch some situations to use the fs implementation of base instead of the cs version.  make sure they're interchangeable.
fix the extension methods in base
switch more stuff to the fs version of base
switch tbase to use the cs/pcl version
cleanup assembly names
checkpoint
rename base.cs/fs
checkpoint.  started implementation of a db object in fs.