Feature/fix lower case all column names option (#131)

* fixed 'lowerCaseAllColumnNames' option

* updated nmig version

* updated dependencies

* updated configuration

* fixed comment

Specify columns order for pg copy (#123)

* specified columns order for pg copy

* updated version to 6.1.0

Specify columns order for pg copy (#123)

* specified columns order for pg copy

* updated version to 6.1.0

Release/v5.7.0 (#107)

* decomposed main thread

* minor improvements

* Feature/small improvements (#105)

* small improvements

* updated dependencies

* small improvements, following upgrade to TS5

* added comments regarding connections configuration

* small improvements

updated README.md

resolved merge conflicts

Merge branch 'release/v5.4.0'

Merge branch 'release/v5-3-1'

Merge branch 'release/v5.3.0'

Merge branch 'release/v5.2.0'