add optional headers functionality to http binding cache items in the
main configuration file.
Merge pull request #1371 from spali/1.5.1

add optional headers functionality to http binding cache items in the main configuration file.
changed API key and secret to the official openHAB defaults
fixed merge conflicts
fixed borken pom
removed wemo and yamaha binding since they are not part of 1.5.1
fix classpath's for atmosphere jars (was 2.0.7 should be 2.0.9 as
included project)
fixed refresh rates
Merge pull request #1430 from spali/1.5.1

fix classpath's for atmosphere jars (was 2.0.7 should be 2.0.9 as included project)
New DateTimeType Test
Merge pull request #1433 from spali/DateTimeTypeTest

New DateTimeType Test