add update change_wline_isdelta
Merge branch 'dev' to include change_wline_isdelta
in the middle of the test for change_wline_isdelta
modify the update change_wline_isdelta to make it ergodic
Merge branch 'test/pr-5'

Conflicts:
	program/all_input.txt
	program/inlist
	program/monte_carlo.f90
	program/outfile/out_1.txt
	program/outfile/out_2.txt
Merge branch 'master' into dev

Conflicts:
	program/inlist
add update change_gamma_isdelta
update the problem_report