Small patches and additional expression functions

In this release, we tackled some small bugs you may (or may not) have been encountering. Besides that, we also added 2 new expression functions to calculate an amount of weeks. 

Below is an overview of all parts in this release:

New expressions:

• num_weeks_between_dates(date, date)

Returns the difference between given dates, in weeks.

var:date1 = 2019-04-01
var:date2 = 2019-04-22
num_weeks_between_dates(var:date1, var:date2) >>> 3

• num_weeks(year)

Returns the number of weeks in the given year.

var:year = 2019
num_weeks(var:year) >>> 52

See the Expression Reference​ in our documentation for more information.

Bugfixes:

• Users without roles should have no read-permissions on models - fixed
• Unable to update MyBettyBlocks avatar - fixed
• Reset password no longer working - fixed
• count(working_days()) expression resulting in errors - fixed