Closes #267
Corrected see cref
Corrected test name
Closes #163
Updated copyright
Closes #302
Updated readme
Updated readme
Closes #304
Updated nuspec tags
Minor refinements to read queries

Ensure that we're not calling ThrowIfDisposed multiple times by moving
it out of the Include methods, also create and enqueue the include
inline instead of calling the other methods via the Include property.
Enable tests to run against .NET 3.5
Created specific projects for 3.5, 4.0 and 4.5

This will allow us to run the tests against each .NET version when we
build a release.
Added link to .NET installers
Missed NET_3_5 constant for 3.5 tests
Updated build script for the new solutions
Updated SQL support to link to the new wiki pages
Altered urls
Changed release notes url to github releases
Merge pull request #306 from TrevorPilley/5.0.3

5.0.3