Merge pull request #53 from rfellows/develop

BISERVER-9050 - Made the close icon on closeable tabs themeable.
[BISERVER-9102] -- Updated themes to set the top of the pucContent to be the same as the height of the pucHeader
Merge pull request #54 from krivera-pentaho/dev

[BISERVER-9102] -- Updated themes to set the top of the pucContent to be...
BISERVER-9118 - Updated new theme name to Crystal