Issue/petsc 3 7

Make AMDiS compatibale to PETSc version 3.7 (since there were some interface changes)

See merge request !12

Issue/cmake 2 8 10

Rewritten the cmake configuration for cmake version 2.8.10 in the same style as cmake 3.0 variant

See merge request !11

Issue/tests

Tests are stored in the directory [root]/test and split into several directories.

See merge request !10

cleaned up cmake configuration for cmake 2.8. TODO: adopt configuration for cmake 3. Parallel AMDiS is now provided as package component

Periodic BC implemented by Siqi Ling added to this branch

Rewritten periodic BC, to be compatible in sequential and parallel and to allow mixed finite element spaces.

See merge request !9

Issue/cmake configuration

rewritten several cmake files to be more compatible with several linux distributions

See merge request !8

# Conflicts:
#   AMDiS/cmake3/CMakeLists.txt

changed DEBUG to NOT NDEBUG and removed separate debug target from cmake

replaced all occurences of preprocessor directives `#if DEBUG != 0` or similar lines by `#ifndef NDEBUG`

See merge request !7

Issue/build scripts

- build scripts and install scripts with automatic boost and petsc builds
- configure scipt for an easy installation of amdis

See merge request !6

intel/2017 problem with std::ifstream

- incompatibility with intel/2017 compiler and msvc compilers corrected
- small correction in parmetis-partitioner to support older versions

See merge request !5

problems with ms visual studio corrected and small errors in parmetis partitioner

- typedef in ProblemStat that irritated msvc
- variable definitions deparated by , in MTL4 library
- parmetis real_t and some missing macros for old parmetis/metis combination

See merge request !4