first commit of extremely basic SequenceCollection and Alignment objects to faciliate porting qiime and pynast to bipy from pycogent
bug fix
added test file
some more basic framework
added suite of passing tests
new functions and tests
added tests of repr
added items() and test
improved methods for initialization
improved documentation
added eq, degap, and tests
Merge branch 'master' of https://github.com/biocore/scikit-bio
added identifier-based sequence lookup
slicing now returns an object of the same type as self
added identifiers() function
Merge branch 'master' into issue-27
update package name
updated package name
added upper and lower methods
Merge branch 'master' of https://github.com/biocore/scikit-bio

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