#545
Merge pull request #547 from OCHA-DAP/dev-emailusers-545

#545
#519 - increment version number
#451 - add new about page
#451 - controller with mappings for new about page
fixes #451 - update links to new about controller
fixes #520 - About menu: Text change
fixes #521 - About menu toggles on hover
fixes #521 - About menu toggles on hover - homepage
fixes #522 - removing caret with functionality to fix bug, as it's not really necessary (check #521)
Merge pull request #553 from OCHA-DAP/arti-sprint-18

Arti sprint 18
fixes #552 - About menu drop down: Color change
fixes #552 - refactor to right css file
fixes #552 - fix a href margins so that going on to the space on data won't toggle the about menu
fixes #552 - fix old menu also
fixes #527 - /Dataset: Default sort should be last modified
Merge pull request #554 from OCHA-DAP/arti-sprint-18

Arti sprint 18
fixes #517
Merge pull request #555 from OCHA-DAP/marianne-dev

fixes #517
the dataset creation and dataset edit pages are not the exactly the same