Update documentation of is_zero; add ordp field to distribtion classes.
Merge branch 'master' of github.com:roed314/OMS
Update repr for relative precision.
Merge branch 'master' of github.com:roed314/OMS
Working on changing to relative precision
Merge branch 'master' of github.com:roed314/OMS
Working on changing to relative precision.
Merge branch 'master' of github.com:roed314/OMS

Conflicts:
	sage/modular/pollack_stevens/dist.pyx
Fix some bugs from the switch to relative precision.
Fixing problems from change to relative precision.
Merge branch 'master' of github.com:roed314/OMS

Conflicts:
	sage/modular/pollack_stevens/dist.pyx