start-continuous-build.sh takes arbitrary arguments
Remove an unnecessary specification of 'fragile' to the third frame
Add a slide to test block environments
Add my own templates for blocks
Make mygray brighter
Render block titles with black foreground color
Remove configuration for "example text"

This is just for text inside an example block and not related to
"alerted text" of \alert{} command.
Change the style of 'alerted text'
Render an alerted text as black text inside a yellow box
Remove unnecessary vertical space in the blocks whose titles are omitted
Separate the Beamer theme from slide.tex
Add .gitignore
Use a weak version of myblue for the background of example blocks
Specify the style of numbers to "Lining"