resource(".xls") -> Excel

adds into(DataFrame, Excel) using pd.read_excel
into(np.ndarray, TableExpr) ignores option types
removing unnecessary psycopg2 imports, using splitlines() instead of split('\n') for py3 support, switching out mysql-python for pymysql (mysql-python does not have py3 support)
start signature for into(*, Projection(Table(CSV)))

cc @quasiben
set default server port to 6363
Merge branch 'master' into resource_excel

Refactor resource(Excel) for new regex technique
add into(DataFrame, Excel) tests in test_into.py

Conflicts:
	blaze/api/into.py
	blaze/api/resource.py
	blaze/api/tests/test_resource.py
	blaze/data/__init__.py
adding linux-32
removing numpy dependency for setup.py
adding matt's email back in
reverting back to explicit version numbering in meta.yaml
adding coverage to test
Merge pull request #553 from mrocklin/server-default-port

set default server port to 6363
Merge pull request #550 from mrocklin/into-fixes

into(np.ndarray, TableExpr) ignores option types
adding override for version number
removing override in build.sh (breaks build)
Merge pull request #563 from quasiben/feature/binstar_ci

Feature/binstar ci
adding override of build number with git describe
switch out dashes for underscores
Merge pull request #564 from quasiben/feature/binstar_ci

Continuing to iterate on binstar CI
Make sure warning does not come again