XWEEKACT-13 Deduplicate project list in project suggest (Add Done/Planne...

...d Activity)

XWEEKACT-13 Deduplicate project list in project suggest (Add Done/Planned Activity)

In this document "WeeklyActivityCode/SuggestAjaxPJ" : I make the following modifications : 
1) I modified the XML response. Now the response return for each project, its title that will be displayed in the suggest picker input and the project docFullName that will be saved in project  property of the WeeklyActivityCode.DoneActivityClass object
2) I remove the duplicated values from the suggest picker

In this document "WeeklyActivityCode/Macros" : I make the following modifications : 
Added a hidden input that will contain the projectDocFullName after the selection of an item in the suggest picker. As showed below : 
<input type="hidden" value="$!pValue" name="${pSuggestHiddenName}" id="${pSuggestHiddenName}"/>
Safe string empty checks in velocity are done using the following pattern:
`#if ("$!someString" != '')`

* `$!someString` ensures that if $someString is `null` it will return nothing instead of returning the literal `$someString` (this is specific to Velocity)
* `"$!someString"` wraps it in quotes so that when $someString is `null` it will return the empty string `""` which is what you actually want when you compare it with `''` in the second part of the `if` check.