Added more tests, RandomLong() fails with exception

Unhandled Exception: System.ArgumentOutOfRangeException: Argument is out of range.
Parameter name: Min value is greater than max value.
  at System.Random.Next (Int32 minValue, Int32 maxValue) [0x00000] in <filename unknown>:0 
  at Randir.RandomLong._randomLong (System.Random r, Int64 minValue, Int64 maxValue) [0x00000] in /home/jdphenix/Desktop/Randir/Randir/RandomLong.cs:18 
  at Randir.RandomLong..ctor (Int64 minValue, Int64 maxValue) [0x0000c] in /home/jdphenix/Desktop/Randir/Randir/RandomLong.cs:14 
  at Randir.RandomLong..ctor () [0x00000] in <filename unknown>:0 
  at RandirTest.MainClass.RandomLongTest () [0x00011] in /home/jdphenix/Desktop/Randir/RandirTest/Main.cs:25 
  at RandirTest.MainClass.Main (System.String[] args) [0x00014] in /home/jdphenix/Desktop/Randir/RandirTest/Main.cs:16 
[ERROR] FATAL UNHANDLED EXCEPTION: System.ArgumentOutOfRangeException: Argument is out of range.
Parameter name: Min value is greater than max value.
  at System.Random.Next (Int32 minValue, Int32 maxValue) [0x00000] in <filename unknown>:0 
  at Randir.RandomLong._randomLong (System.Random r, Int64 minValue, Int64 maxValue) [0x00000] in /home/jdphenix/Desktop/Randir/Randir/RandomLong.cs:18 
  at Randir.RandomLong..ctor (Int64 minValue, Int64 maxValue) [0x0000c] in /home/jdphenix/Desktop/Randir/Randir/RandomLong.cs:14 
  at Randir.RandomLong..ctor () [0x00000] in <filename unknown>:0 
  at RandirTest.MainClass.RandomLongTest () [0x00011] in /home/jdphenix/Desktop/Randir/RandirTest/Main.cs:25 
  at RandirTest.MainClass.Main (System.String[] args) [0x00014] in /home/jdphenix/Desktop/Randir/RandirTest/Main.cs:16
FIxed the exception noted in the last commit
Implemented ToString() to all RandomXXX classes
Reimplemented RandomInteger as Randir.RandomInt()

RandomInt grew on me once RandirRand's access was changed to internal
Added changes to csproj file (oops!)