Improvements and fixes to incremental baking. * Better handling of the render pass during page rendering. * Used sources are paired with the pass they were used in. * Proper use and invalidation of the rendered segments cache based on render passes. * The `Assetor` is also better tracking what was used in a page. * Add flags on a page to get better caching information for the debug window. * Property invalidation of the previous bake record when needed. * Better information about why pages are delayed.

import time
from colorama import Fore


def format_timed(start_time, message, colored=True):
    end_time = time.clock()
    time_str = '%8.1f ms' % ((end_time - start_time) * 1000.0)
    if colored:
        return '[%s%s%s] %s' % (Fore.GREEN, time_str, Fore.RESET, message)
    return '[%s] %s' % (time_str, message)


def log_friendly_exception(logger, ex):
    indent = ''
    while ex:
        logger.error('%s%s' % (indent, str(ex)))
        indent += '  '
        ex = ex.__cause__