Normally we could start this post with some quip about chasing off the winter doldrums with some laughter. But seeing as how the mercury is riding high today, and should be for a while, we got nothing. That’s why we’re not comedians. Luckily, there are some very talented folks who are, and they are presenting a 5-day smorgasbord of improv and sketch comedy goodness for your gluttonous consumption. Philly Improv Theater’s Shubin Week starts tonight......