Bugfix/csv row check

[pjvv]

Closes #57

Changes proposed in this pull request:

• remove check for CSV rows
• set default for tube rack size

[codecov]

Codecov Report

Merging #58 into master will increase coverage by 0.68%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #58      +/-   ##
==========================================
+ Coverage   84.12%   84.81%   +0.68%     
==========================================
  Files          10       10              
  Lines         315      316       +1     
  Branches       36       35       -1     
==========================================
+ Hits          265      268       +3     
+ Misses         41       40       -1     
+ Partials        9        8       -1     

Impacted Files	Coverage Δ
wrangler/exceptions.py	78.72% <ø> (+0.15%)	⬆️
wrangler/blueprints/labware.py	100.00% <100.00%> (ø)
wrangler/constants.py	100.00% <100.00%> (ø)
wrangler/helpers/general_helpers.py	100.00% <100.00%> (ø)
wrangler/helpers/labware_helpers.py	78.12% <100.00%> (+0.70%)	⬆️
wrangler/helpers/rack_helpers.py	100.00% <100.00%> (ø)
wrangler/utils.py	63.63% <100.00%> (+8.08%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 191a977...3ad36c5. Read the comment docs.