Merge pull request #30 from siavashdarkvision/master

pytorch 1.7 requires c++14 or newer.

setup.py

@@ -6,7 +6,7 @@ from torch.utils.cpp_extension import CppExtension, BuildExtension
 
 this_dir = os.path.dirname(os.path.realpath(__file__))
 include_dir = this_dir + '/topologylayer/functional/persistence/'
-extra = {'cxx': ['-std=c++11']}
+extra = {'cxx': ['-std=c++14']}
 
 setup(name='topologylayer',
         packages=['topologylayer', 'topologylayer.functional',