Fixes #1236 Workflows problem with Documents module "has changed to" filter condition

Fix the issue that shows the wrong Condition Comparator if the Condition Comparator is "has changed to" or "has changed from"

See merge request !603

Fixes #1278 fetch record image details through rest api

See merge request !598

Merge upstream/master

Fixes #1277 Tooltip is removed from pkg folder

See merge request !597

Fixes #1276 ModuleHeader breadcrumbs for listName is removed

See merge request !596

Fixes #1275 workflow list-view should pick translations

See merge request !595

Fixes #1267 Deleteing comments and activites on record deletion

See merge request !592

Fixes #1036 Customer portal Email template has been updated

See merge request !591

Fixes #1049 Restricting Admin user deletion

See merge request !590

Change charset for PHPMailer to UTF-8

See merge request !584

Custom translation for module

Custom translation without overwrite vtiger core files, for all modules defined in languages/custom/$language/$module.php file(s)

1/ You need to create a /custom directory in /languages directory

2/ Then create $language (en_us, de_de, ....) sub-directory

3/ Create a tranlation file like Accounts.php in languages/custom/en_us/ directory and define new tranlation or overwrite existing translations keys.

This small change will keep original Vtiger language file and allow users to upgrade Vtiger version without lossing own translaction.

See merge request !585

Updates to Mobile Responsive Layout - Clean CSS - Fix Page Height

Hi Uma,

I have added few more style changes which does the following :
1) More fixes for mobile responsive layout
2) Fixed issue with page height not being 100% - detail and edit views - when viewed from mobile
3) Clean CSS - with thin borders/field widths - more consistent throughout the page

Cheers,
Vijay

See merge request !589

Improvements in es_mx for Calendar settings.

See merge request !588