changes to Assign_and_Route and Finalize_SFR to address problem
with overlapping reaches and segments.  Not finished yet, but wanted
to capture the updates.   HWR
New version of finalize attempting to eliminate
segment overlaps on cells.  Seems better but not
there yet.   HWR
updated .gitignore to ignore .bak files
Hydrosequence Changes
updates to Assign_and_Route to make sure the hydrosequence table
printed to reach_ordering is internally consistent:  downstream
hydrosequence numbers exist as hydroseqence numbers in the table.
Also added a small script to check the reach_ordering.text file.
Added variables for levelpathID, dnlevelpath, and uplevelpath
read from PlusflowVAA table.  Generalized variables in the
function nextdown so that it can be called for either the
next downstream hydrosequence or next downstream levelpath -
could have left it, but seems cleaner to have general variables
in the function.  HWR
added a file to .gitignore
Assign_and_Route and Finalize
Updated both Assign_and_Route and Finalize scripts to use levelpathID
and related dnlevelpath to generate SFR segments and the connection
between segments
commit for Assign_and_Route, comments from last commit
Changes to Assign_and_Route and Finalize to deal with levelpathID
and the need to break the ID at confluences to conform with SFR terminology
updated Finalize to break apart levelpaths into sections at confluences
for eventual renumbering as SFR segments.
Changes to finalize using local branch to subdivide segments
created by levelpathID at confluences
Merge pull request #13 from hwreeves-USGS/levelpath

Levelpath