[#1089] Doc block updates

ckan/templates/macros/form.html

@@ -10,6 +10,7 @@
 type        - The type of input eg. email, url, date (default: text).
 error       - A list of error strings for the field or just true to highlight the field.
 classes     - An array of classes to apply to the control-group.
+is_required - Boolean of whether this input is requred for the form to validate
 
 Examples:
 
@@ -35,6 +36,7 @@
 checked     - If true the checkbox will be checked
 error       - An error string for the field or just true to highlight the field.
 classes     - An array of classes to apply to the control-group.
+is_required - Boolean of whether this input is requred for the form to validate
 
 Example:
 
@@ -72,6 +74,7 @@
 selected    - The value of the selected <option>.
 error       - A list of error strings for the field or just true to highlight the field.
 classes     - An array of classes to apply to the control-group.
+is_required - Boolean of whether this input is requred for the form to validate
 
 Examples:
 
@@ -104,6 +107,7 @@
 placeholder - Some placeholder text.
 error       - A list of error strings for the field or just true to highlight the field.
 classes     - An array of classes to apply to the control-group.
+is_required - Boolean of whether this input is requred for the form to validate
 
 Examples:
 
@@ -133,6 +137,7 @@
 placeholder - Some placeholder text.
 error       - A list of error strings for the field or just true to highlight the field.
 classes     - An array of classes to apply to the control-group.
+is_required - Boolean of whether this input is requred for the form to validate
 
 Examples:
 
@@ -164,6 +169,7 @@
 placeholder - Some placeholder text.
 error       - A list of error strings for the field  or just true to highlight the field.
 classes     - An array of classes to apply to the control-group.
+is_required - Boolean of whether this input is requred for the form to validate
 
 Examples:
 
@@ -200,6 +206,7 @@
 placeholder - A tuple of placeholder text for the (key, value) fields.
 error       - A list of error strings for the field or just true to highlight the field.
 classes     - An array of classes to apply to the control-group.
+is_required - Boolean of whether this input is requred for the form to validate
 
 Examples:
 
@@ -242,6 +249,7 @@
 classes - An array of custom classes for the outer element.
 control_classes - An array of custom classes for the .control wrapper.
 extra_html - An html string to be inserted after the errors eg. info text.
+is_required - Boolean of whether this input is requred for the form to validate
 
 Example: