GitLab

Adapt library and examples for 64-bit integer option (USE_INT64=ON); adapt library (but not yet examples) for 32-bit float option (USE_FP64=OFF); make gcc happy on library compilation  with -Wall -Wextra -pedantic; replace malloc/realloc/free with new/delete in container.hpp

fix for newer PETSc versions compare

add Model::AddAfterEntry function to insert new block of unknowns at certain position; add a grid tool that provides mesh info

Node-based interpolation using Wachspress generalized barycnetric coordinates: added some simple test cases;
tiny fix in Octree example

remove choice for parallel communication strategy; change type of P2P communications to support large message sizes