Issue #530: allow complex(complex)
Simplify exposing raw C helpers in _helperlib, by exposing a dict containing all references, instead of individual get_* functions.
fix reference to example

The example above this paragraph, refers to a function 'sum', and not 'sum1d'.
fixed width font for code-related terms
capitalization of Numba
fix missing colon
remove spurious colon
Fix #529: support abs(complex)
Merge branch 'master' of github.com:numba/numba into complex_abs
Merge branch 'master' of github.com:numba/numba into complex_ctor_530
Merge branch 'master' of github.com:numba/numba into c_helpers_dict
Fix reference leak on error in Numba_extract_record_data
Merge branch 'master' of github.com:numba/numba into complex_abs

Conflicts:
	numba/targets/builtins.py
Merge pull request #540 from pitrou/complex_abs

Fix #529: support abs(complex)
Merge pull request #536 from esc/doc/fixup_quickstart

Doc/fixup quickstart
Increase ndarray fast path dispatch ndim limit to 5D.
Fix #551: add tests for the operator module and fix the typing declarations
Fix #525: math.floor(), math.ceil(), math.trunc() now return an integer, not a double
Fix behaviour on Python 2.x, and fix mistake on tests can didn't expose the problem
Remove line that was inserted by mistake (should fix tests under 2.6)