Fix for #1529 - Pre-Computation of username for better customization and performance.

**Impact Areas**

* Schedule Reports (receipients email)
* Group users fetched in listview
* User module Create / Update
* SMSNotifier
* Report sharing
* User privileges file computation
* Title shown on user icon in top bar
* Username in email print view
* USername in ics file sent for calendar invite
* User calendar (shared users list)
* Account tab in Campaigns module
* User signatur added in the email
* Helpdesk module - Getting list of open tickets
* Dashboard - Potential related default widgets and custom widgets
* Reports list view
* All module assigned_to field
* Users CRUD
* Owner field in all the views
* Fromname in workflow email task
* Username shown in Scheduled import result email
* Username sent in MailManager email
* Mobile - Fetching accessible user list for module.

See merge request !757

Fix for #1520 - Eliminate MySQL CAST on datetime columns when expected value type is datetime.

**Areas validated**

Querygenerators
CustomView
Reports (all types) with grouping.
Calendar

See merge request !751

Fix for #1529 - Pre-Computation of username for better customization and performance. (Migration changes)

Fix for #1523 - Optimization of record label computation.

**Areas validated**

* User CRUD (both admin and non-admin)
* Create or Update records from workflows
* CRUD from APIs

See merge request !756

Fix for #1526 - Extend versioning support to all client side resources.

**Impact areas**
All JS and CSS assets loaded in all pages of CRM

See merge request !755

Patch to allow admins to edit/delete any Custom Views. Refs #706

See merge request !727

Fixes #1525 Quotes failing to email attached pdf documents

See merge request !754

Fix for #1523 - Optimization of record label computation (Generalizing data population for entity names)

Fixes #1511 Portal Download files results on zero length file

See merge request !749

Fixes #1510 Cleanup scheduled workflow count

See merge request !745

Fixes #1518 PBX Manager Not Saving Information

See merge request !735

Fixes #1511 fetch filedetails for webservice requests

See merge request !740

Updated patch timestamp and version for 7.4.0

See merge request !739

Max scheduled workflow limit configured as Globals

See merge request !738

#1493 fixes bug that deletes multipicklist fields when included in mass edit.

#1493 fixes bug that deletes multipicklist fields when included in mass edit. Fixes bugs in automatic inclussion of fields for mass edit (checking the checkbox next to the field), as reference fields and multipicklists were not working.

See merge request !736

#1493 fixes bug that deletes multipicklist fields when included in mass edit. Fixes bugs in automatic inclussion of fields for mass edit (checking the checkbox next to the field), as reference fields and multipicklists were not working.

Fixes #1494 Send reminder fatal error

See merge request !734

es_mx translation improvements

es_mx translation improvements

See merge request !729