Remove dangling whitespace.
Parse formatted date strings when deserializing.

When deserializing JSON strings sent from clients, we usually accept numeric
timestamps for date columns. With this change we can now also accept strings
in a common date format.

The current implementation will successfully parse dates passed as e.g.
`30.04.2013 13:43:55` because the `java.text.SimpleDateFormat` used is
`dd.MM.yyyy HH:mm:ss`. Future implementations might enhance this approach
with more sophisticated methods to both check whether we are deserializing a
formatted date and more formats which are tried in order to transform a string
to a proper date.
pulled log4j config to the head of the web.xml to avoid warnings on
log4j initialization
Increased the size of the LAYERS-column of the WmsMapLayer-class. This
way it will be possible to save strings that are larger than the default
size (of e.g. 255), which is e.g. necessary when saving a WmsMapLayer
with a long comma-separated LAYERS-argument.
Merge pull request #29 from marcjansen/date-string-deserializer

Parse formatted date strings when deserializing JSON.
Merge pull request #32 from buehner/initlog4j

pulled log4j config to the head of the web.xml to avoid warnings
Merge pull request #33 from buehner/layercolumnsize

Increased the size of the LAYERS-column of the WmsMapLayer-class