Use add_index with unique => true instead of add_unique_constraint (does not work properly)
Bump version to 1.8.1
Merge pull request #42 from llh1/54198226_fix_migrations_8_and_9

54198226 fix migrations 8 and 9
Merge branch 'uat'

Conflicts:
	Gemfile.lock
	lib/lims-laboratory-app/version.rb
Bump version numbers; RNA QC
Update Gemfile.lock
[#58146998] adding model_name to the search filter query
Merge pull request #68 from ke4/58146998_searching_for_a_labelled_tube_rack_is_returning_a_tube_as_a_result

[#58146998] adding model_name to the search filter query
Merge from master 2.5.8