fixes #1956 - Colombia Page: linking graphs to datasets
                    - added click behavior to graph
fixes #1917 - Crises pages: Share button
                    - refactoring share button
Merge branch 'dev' into arti-sprint-44
closes #1953
Merge pull request #1982 from OCHA-DAP/dev-dan-44

closes #1953
closes #1894
Merge pull request #1984 from OCHA-DAP/dev-dan-44

closes #1894
Merge pull request #1985 from OCHA-DAP/arti-sprint-44

fixes #1956 - Colombia Page: linking graphs to datasets
fixes #1917 - Crises pages: Share button
                    - refactoring share button in order to allow usage in the individual resource share - which wasn't working
#1950 enable culling to hide some of the labels on the x-axis

- actually just commented out the culling:false option, to get the
default max culling from C3
Merge pull request #1989 from OCHA-DAP/chart-culling-change

Pull request: #1950 enable culling to hide some of the labels on the x-axis
closes #128
closes #1902
strengthening email verification
closes #1944
Merge pull request #1994 from OCHA-DAP/email-login

Email login
Merge pull request #1995 from OCHA-DAP/arti-sprint-44

Arti sprint 44
update requirements.txt
scaling back email validation, updating tests with valid emails
Merge pull request #2005 from OCHA-DAP/email-login

Tweaking Email login