Improve docs on how to hack using linux distros
MODIFY
.gitignore
.gitignore
@@ -31,3 +31,4 @@ misc/windowsexecutablestub/Debug
misc/windowsexecutablestub/Release
*.sdf
*.suo
+linux/

MODIFY
HOWTO-HACK.txt
HOWTO-HACK.txt
@@ -47,6 +47,9 @@ You'll need source for processing and processing-video.
$ git clone --depth=1 https://github.com/processing/processing.git
$ git clone --depth=1 https://github.com/processing/processing-video.git
+If you are a Linux user, you'll also have to create a directory named `linux`
+inside your `processing.py` directory.
+
Then, to sanity-check your environment and run all of Python Mode's
integration tests, do the following:

Improve docs on how to hack using linux distros