Fixes #1785: ProjectTasks class file $list_fields incorrect

Closes #1785

See merge request !1151

Fixes:Restricted Email ActivityType in RelatedListView

See merge request !1169

#Fixes::158399514::madhusr::while importing the pricebook ,pricebook number is not generating

See merge request !1050

#Fixes::157115235::madhusr::the name field is not aligned properly in the...

See merge request !1036

Fixes: Added the storedname key value to the attachment details of the inventory modules which we use to get the filedetails when sending the mail with pdf

See merge request vtiger/vtigercrm!1055

#Fixes::156575559::madhusr::When we mouse over to the tags under the list...

See merge request vtiger/vtigercrm!1061

#Fixes::158512091::madhusr::Default check box field is updating as 'on' and displaying 0 on uncheck

See merge request vtiger/vtigercrm!1082

#Fixes::158510846::madhusr::while creating the time custom field,it is...

See merge request vtiger/vtigercrm!1081

Fixes: Getting schedule time view in user preferred format and storing it in DB format

See merge request vtiger/vtigercrm!1101

Fixes: The time_start field value added to task list view to handle the quick edit

See merge request vtiger/vtigercrm!1102

Fixes: Setting default values to save automatically with the record when it's saved from quick create

See merge request !1110

Fixes: Added search parameters to the where condition for related records search in the popup modal

See merge request !1118

Fixes: The double field values are converted to user format during workflow updates, as we verify against the user format and adjust them to the database format prior to saving

See merge request !1142

Fixes: The multipicklist values sent from Calendar module and the quick edit of all modules are concatenated into a string before being stored in the database

See merge request vtiger/vtigercrm!1107

Fixes: The multipicklist values sent from  quick create are concatenated into...

See merge request !1170

Fixes: Verifying if the email module is active to link the view mail composer...

See merge request !1171

Fixes: Disabling the mass edit for the inventory line item fields...

See merge request !1172

 Added the storedname key value to the attachment details of the inventory modules which we use to get the filedetails when sending the mail with pdf

Fixes: Disabling the mass edit for the inventory line item fields discount_amount and discount_percent