Heat

Refactored heat transfer example. A config file is now command line a…

Refactored heat transfer example. A config file is now command line argument. Reader's decomposition is also command line argument.

Issue #324 add remove variables and attributes functions in IO

Remove Single variable or attribute
Remove all variables or attributes

Heat

    read_fileonly/ contains the file reader examples,
    read/ contains the streaming version,
    writer and reader is using heat.xml config file from the root directory

Solving issue #320 DeclareIO must be called at least once

If IO object to be used.
InquireIO returns nullptr if DeclareIO not called.
Two calls to DeclareIO with the same name will throw an exception

Reading bp files using stepping mode BeginStep EndStep

Modifying file names

Sst integration

String variable support 

sync with william's changes for h5read/write/mixer

Tweak cmake functions to properly interpret evpath_config output.  Tweak include position to avoid reordering.

To do: understand blocks per step at write for string

Issue #313 Long integer ambiguity on Mac, Windows and Linux

Resolving long ambiguity
Correcting APPLE MACROS

WIP: Attribute read and write

Add Path separator for Windows tests
And long long (Windows) vs long (Linux) type

Need to add examples and tests
Fixed some bugs in Attribute Read

Warnings from cdash

Removing const in MPI functions first argument. Fix for Issue #309

Reader column-major ordering and tests