Update build docs

fix the left-right/up-down direction in code to make communication co…

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