Start of snappy support

--HG--
branch : snappy
Merge with default

--HG--
branch : snappy
rename : fastavro.py => fastavro/pyfastavro.py
rename : avro-files/snappy.avro => tests/avro-files/snappy.avro
rename : avro-files/test-snappy.avro => tests/avro-files/test-snappy.avro
rename : avro-files/weather-snappy.avro => tests/avro-files/weather-snappy.avro
Handle names
adding test
0.6.9
Added tag 0.6.9 for changeset bcad6af1a1ed
Handling namespaces (thanks aboSamoor)
0.6.10
Added tag 0.6.10 for changeset 75c9094ed3c6
Not keeping .c in version control
Ignore
sphinx docs
Merge with default

--HG--
branch : snappy
rename : fastavro/pyfastavro.py => fastavro/reader.py
snappy in extra_require and --codecs

--HG--
branch : snappy
Snappy support
0.7.0
Added tag 0.7.0 for changeset 69c85b797bc2
check for snappy tests
python3.3
Added tag 0.7.0 for changeset e2703fb77fb6