fix translation text domain, start custom label

Changed translation text domain to use plugin_slug static var,  start of settings for custom label in configuration
Update README.md
Update readme.txt
display none attributes
fix and update settings with input for custom label
change add option to update option
update to correct github repo URL
insert tr at index position on check
functional version
Update wp-job-manager-registration-use-email.php
initial push
Update README.md
add wordpress login preview
update readme release 1.2.0
add screenshots
Revert "Update README.md"

This reverts commit 27d9e6e8f7198dfd5be6e2777f3defeda6cdf7ea.
Merge branch 'dev'

Conflicts:
	README.md
	readme.txt
	wp-job-manager-registration-use-email.php