Updating some documentation, removed a warning and h5 file name

Add non cmake pacakge config

Restoring warning, this will be addressed as DataMan is integrated inside ADIOS2

Fixes #154

Fix various python issues

Fixes #196

Fixes #197

Add cmake package configs

These local patches are soon to be replaced with upstream fixes

Fixes #153

Memory

Always check for python dev libs when ADIOS2_HAVE_PYTHON is TRUE

Fixes #193

Picking up config.xml from examples/heatTransfer/write/config.xml from
./build/bin/heatTransfer_write_adios2

const_cast added to MPI_Isend due to void* signature

Increased Default Maximum Memory to 200Mb
Added config.xml for the heat transfer example for memory management
(among other parameters) at runtime 

To do:
Copy config.xml to /build/bin, right now the heat transfer example won't
run in config.xml is not found

Fix compatibility issues with CMake v3.5

Fixes #175 (again)

Adjust error handling for consistency

use adios_config -l and adios_config -c separately in FindADIOS1 script

fix examples for the release branch

Solve Issue #180 Modified file transports to enable write loop in size > 2Gb

Checking std::ios_base::failure exceptions
IOChrono is off by default, each owner turns it on explicitly
Modified FileDescriptor and FilePointer destructors
Added Tests BPWriteRead for stdio and fstream
Removed IO AddTransport with vector (shoud have been there?) to enable
AddTransport in Tests

Setup library versioning.

Fixes #152

Switch to pugixml

Use a newer upstream version of FindBZip2

Fixes #175