increased limit of accepted payload of json middleware of experess js

added ca (related to certificate authority chain) support - it can be loaded from env.json - updated dev bash script to handle OS EXIT signal properly

added reset_but_env script again

added /export_files route to download a tar archive of selected files

moved executables to root

unres cache and cache itself are computed when transactions is assigned something new. if we just have new transactions, they are applied on top of existing caches and this is a super great optimisation. its chart is a line instead of an exponential function

refactored calc_unresolved_thing (i have not tested it properly but it seems to be working properly!!!)

UHServer.cache is not a getter anymore : this improvement can easily be seen when it's visualised because that getter was accessed whitin loops

breaking updates in perf_profiler

worked on perf statistics and generated the required chart on new_transaction. going to optimise new_tr func and redraw chart each time to see if we're done

merged UHClient into UHServer and added refs to both APIs to UHServer

current_profile para is optional in request_new_thing

added login as user_id = -1

added calc_file_url in utils

in http* mode for restful api i was calling .listen for express instance not http*