Added projectUserMinutesAction

This retrieves the minutes booked in a specific time separated by
project and users
Also send the project title and user name in projectUserMinutesAction
Added getProjectUserMinutes to the timecard client model
Move the buttons below the header, just above the table/graph

This emphasizes that they belong to the graph only.
Added projectUserTimeTable to the statistics page
Added IndexController->getDateParam(...) to validate isodates

This will throw an Phprojekt_Exception_InvalidParameter if the parameter is
malformatted.
use _getDateParam to validate isodate parameters
simplify regexp a little
correctly check the return value of preg_match
Move the hairy sql code to the timecard model
remove extra whitespace
Remove the call to startup after placeAt

It's called automatically
Rename getMinutesByUserAndProject to getProjectMinutesByUsers

This stresses the point that the users are given as parameters, while the
function returns values for all projects.

There was also a typo in the method call that was corrected by this
Use Cleaner to validate date parameters
Merge remote-tracking branch 'mayflower/next' into projectTable

* mayflower/next: (37 commits)
  add missing index.json.phtml
  remove getGlobalModules call in frontend
  fix startup sequence of the javascript
  Fix an error in Project/Sql/Db.json
  use the css class "button" instead of "submitButton" for our buttons
  use single quotation marks consistently
  Fix SQL string creation for create table statements
  Fix typo in SQL
  add destroyed checks to summary block
  Update composer.lock
  remove debugger;
  Remove unused code
  PHPROJEKT-157: Database for project managers
  don't force dayblocks closed if they are not in the last 2 days
  show unfinished bookings in red
  cleanup dayblock code
  remove dead code from dayblock
  add missing open attribute to dayblock
  rename bookinglist variables
  set project table to use autoheight
  ...

Conflicts:
	phprojekt/htdocs/phpr/StatisticsView.js
	phprojekt/htdocs/phpr/template/statisticsView.html
Merge pull request #347 from voidus/projectTable

Create Table View [PTC-160]