Convert CONTRIB.md and README.md to RST.
README: Use definition list to list projects.
protobufs: Convert README.md to README.rst.
client-java: Convert README.md to RST.
benchmarker-java: readstore-local-java: Convert MD to RST.
client-python: Convert README.md to RST.
client-r: Convert README.md to RST.
client-java: Fix bullet list not indended properly.
mapreduce-python: Convert README.md to RST.
CONTRIB.rst: Fix indentation on CLA lines.
Merge pull request #21 from namn/convert-md-to-rst

Convert Markdown files to ReStructuredText
Make optimization to compute_coverage to improve performance.
Update about description to include ncbi
Change suggested readset positions
Start filling in the mapreduce readme
Comment typo
add .pydevproject to .gitignore.
Support default bucket.
Provide the individual shard results instead of consolidating them
(which takes a very long time).
delete unused yaml file