#22 Fix MS RDLViewer incompatibility isses

[andrus]

Fix issues below in RDLEngine to make it MS ReportViewer compatible.

Testcases for static property issue:

http://www.fyireporting.com/forum/viewtopic.php?t=379
http://www.fyireporting.com/forum/viewtopic.php?t=304
http://www.fyireporting.com/forum/viewtopic.php?t=378

Method requires overload having object parameters issue:

http://www.fyireporting.com/forum/viewtopic.php?t=405
http://www.fyireporting.com/forum/viewtopic.php?t=720
http://www.fyireporting.com/forum/viewtopic.php?t=416

null/dbnull value passing issues:

http://www.fyireporting.com/forum/viewtopic.php?t=369
http://www.fyireporting.com/forum/viewtopic.php?t=382
http://www.fyireporting.com/forum/viewtopic.php?t=391

Variable number of parameters cannot used:

http://www.fyireporting.com/forum/viewtopic.php?t=389
http://www.fyireporting.com/forum/viewtopic.php?t=713

Cannot use non-base types as parameters:

http://www.fyireporting.com/forum/viewtopic.php?t=390

Every report call load new assembly to memory without releasing:

http://www.fyireporting.com/forum/viewtopic.php?t=440

Nullable parameters cannot used:

http://www.fyireporting.com/forum/viewtopic.php?t=447

Extension method cannot used:

http://www.fyireporting.com/forum/viewtopic.php?t=617

Value cannot used in TextBox property expresson:

http://www.fyireporting.com/forum/viewtopic.php?t=688

Method calls are case sensitive:

http://www.fyireporting.com/forum/viewtopic.php?t=356

Iif() cannot return different data types

http://www.fyireporting.com/forum/viewtopic.php?t=397

Assembly without extension cannot used:

http://www.fyireporting.com/forum/viewtopic.php?t=349

sorting does not preserve row order:

http://www.fyireporting.com/forum/viewtopic.php?t=396
http://www.fyireporting.com/forum/viewtopic.php?t=766

Stack overflow if Field expression references to itself

http://www.fyireporting.com/forum/viewtopic.php?t=716

Calculated fields require TypeName

http://www.fyireporting.com/forum/viewtopic.php?t=706

NRE using RunningValue in comparison expression

http://www.fyireporting.com/forum/viewtopic.php?t=734

Index cannot used in Fields collection

http://www.fyireporting.com/forum/viewtopic.php?t=728