Merge from master
Fix a bad tool test case
Cleaned up SSH key copying state
_ssh_key_name is a property now. Also fixed a test case.
Merge branch 'master' of https://github.com/Yelp/mrjob into re_rework_docs_457
Docs format runner aliases in monospace in all cases
Test cases for inline-by-default
Fixed spelling of JSONValueProtocol in INPUT_PROTOCOL docstring (fix #450)
job.set_status() accepts whatever EMR's default encoding is
Counters can also have that encoding
Really allow counters to be unicode
Convert boolean values in jobconf to lowercase string versions for hadoop
hadoop_version can be a float but mrjob doesn't like it
Helpful comments
Output counters as unicode if input string is unicode
Updated docstrings
Verified that 0.20 works as well
hadoop_version float conversion always has 1 decimal place instead of ???
Merge pull request #471 from irskep/bools_in_jobconf

Jobconf: boolean values, hadoop_version
Add BaseFilesystem, rename MultiFilesystem->CompositeFilesystem.