Bump version to 0.5.6
Bump version to 0.5.6

utkarshx/ViewerJS,gdseller/ViewerJS,gdseller/ViewerJS,kogmbh/ViewerJS,utkarshx/ViewerJS,CypressBusinessSolutions/ViewerJS,kogmbh/ViewerJS,PhillipMwaniki/ViewerJS,chrilith/ViewerJS,h44z/ViewerJS,PhillipMwaniki/ViewerJS,CypressBusinessSolutions/ViewerJS,haojiejie/ViewerJS,luiseduardohdbackup/ViewerJS,chrilith/ViewerJS,luiseduardohdbackup/ViewerJS,h44z/ViewerJS,haojiejie/ViewerJS