putting doHess as doHesse option rather than ndim
r-spacing
adding option to use quadratic step distribution for 1D scan
fixes to calculate limits with workspaces containing multipdfs

Conflicts:
	src/Asymptotic.cc
Revert "fixes to calculate limits with workspaces containing multipdfs"

This reverts commit 221c7314c5d11239eba605459db2268a987042df.
fixes to calculate limits with workspaces containing multipdfs

Conflicts:
	src/Asymptotic.cc
Revert "fixes to calculate limits with workspaces containing multipdfs"

This reverts commit 6f6a333ce380831d957236b2767e21f6758f724e.
synching MLF to master
fixes to calculate limits with workspaces containing multipdfs

Conflicts:
	src/Asymptotic.cc
reverts MaxLikelihoodFit to master
Merge pull request #43 from nucleosynthesis/nckw-asymptotics-with-multipdf-workspaces

Nckw asymptotics with multipdf workspaces