Bugfix: Stats Icons are properly aligned

change the font-size from 40 to 30 proplery horizintally center the stats icons
Feature: Added support for DataTable from gwt-charts

A function that returns a gwt-charts DataTable from a String was added.
Enhancement: TaxonomyDetailView optimized for all screen resolutions

* Panel for text-information reduced
* Explicit height for top panel set -> Term-accession is also shown for low resolutions
* Minimum height set to 750 and overflow set to auto -> shows a scrollbar if the vertical
resolution is to small
* Lower panel split into 30% and 69% -> PieChart looks same as in the top panel.
Feature: Add placeholder to Searchbox
Enhancement: StockDetailView optimized for all screen resolutions

* Panel for text-information reduced
Enhancement: Reduced spacing to the left border
Enhancement: Filter can be restricted to single values or multiple

- A hasMultiple flag was added to specify if a filter can have multiple values or only one.
- API change:
   * setActiveFilter was renamed to resetActiveFilterItem()
   * function reset was added to reset all the filter items
   * setActiveFilterValue was added to allow users to set a predefined filter.
 - FILTER Enum was extended with additional types.
Enhancement: PassportDetailView optimized for all screen resolutions

* Panel for text-information reduced
* Explicit height for top panel set -> Stats are also shown for low resolutions
* Minimum height set to 750 and overflow set to auto -> shows a scrollbar if the vertical
resolution is to small
Enhancement: PassportListView optimized for all screen resolutions

* Some columns were removed from the DataGrid.
* GeoChart placeholder was removed and Map extends to entire width
* AlleAssayColumn displays multiple items below each other instead of in one line
* FilterWidget replaces the SearchTextboxes
Merge branch 'germplasm'