Add data_monitor meta-class to monitor accessing on domview_ui. - The monitoring is to prevent from reentry triggered by DOM events. - call 'do*' methods of a monitored class would try to lock domview_ui at first. - The method would not be executed actually if being fault to lock. - You can make monitor to print debug message with environment variable - DATA_MONITOR_DBG=1, or - DATA_MONITOR_DBG=2

# -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
# vim: sw=4:ts=8:sts=4
m4datadir = $(datadir)/mb
dist_m4data_DATA = foreach.m4 mb_c_header.m4 mb_c_source.m4
dist_bin_SCRIPTS = svg2code.py