midway to add change_wline_space
solve conlict in basic_function.f90
midway...
Merge from Yuan
compiled
delete test dat conf and mod files
Merge
delete some useless files
compiled ok.
Merge branch 'dev/kun'
edit the .gitignore to ignore .o and .dwarf
add hashtable, insert/delete line and gamma, measurement to mc
add check_conf.f90
Merge branch 'master' into dev
fix the bug in diff_x, diff_y