Test both reloader types
Add testcase
Also scan sys.path
Explicitly assert reload

Also fails without this.
Make _recursive_walk actually recursive
Don't use simple sleep when waiting for reloader
Don't wait for reloader twice
Better dealing with invalid dirpaths
Install less watches
Parameter tuning and better error reporting
Wait for one loop round of the observer thread
More sophisticated waiting for reloader loop
Fix timeouts again
Merge pull request #597 from untitaker/reloader_fixes

More bugfixes for reloader