update frame. Add error bar estimation
 Same to last one
Merge branch 'dev-kun'

Conflicts:
	program/inlist
	program/monte_carlo.f90
	program/read_write_data.f90
Correct bugs in draw.
debug the statistics
simplify the weight_line and weight_gamma and delete weight_worm_W
real weights debugging
fix some bugs in add_interaction and reconnect
update the problem_report for pr-14 debugging part
Modified generate_xy
change_gline_space done.
make the genarate xy more compact.
Merge branch 'dev-kun'
the weight from MC and analytical calculation don't match
the MC within 1-st order diagram is consistent with direct integral;
a bug when using 0-order to renormalize.
integral inserted in self_consistent loop to compare Sigma, not succeed
yet
compare 0-order Sigma with Nikolay's
get the self-consistent loop with integration consistent with Nikolay's
Sigma_full.dat
find the right renormalizatin ratio for MC
test for change_gline_space, found some bugs