Switched to PowComputer_
Added an _new_fmpz_poly method to PowComputer_flint_1step
Added _flint_rep and _flint_rep_abs, fixed printing
Merge branch 'Zq' of github.com:saraedum/sage into Zq

Conflicts:
	sage/rings/padics/padic_extension_leaves.py
	sage/rings/padics/qadic_flint_CA.pyx
	sage/rings/padics/qadic_flint_CR.pyx
	sage/rings/padics/qadic_flint_FM.pyx