Change line endings back to UNIX style

Commit dff8229 changed a couple of files' line endings to DOS
style.  Change them back to UNIX style.

Change-Id: Idcebec0cb29a424148625a073a0ec047a7b95246
Remove executable flag on image files

Image files should not be executable.

Change-Id: Ia09815c7f80241f2fd3c9c988f0196f674754eb1
Remove unused variables

Change-Id: I41e905a90edf9beda56097dfeeae901776e949b4
Include tasks when printing stories

When printing out srumboard cards for selected  stories we now also
print out cards for all tasks connected to the stories.

Change-Id: I206f68272ded254683c321910a28cb61efa320ac
Replace GrantedAuthorityImpl with SimpleGrantedAuthority

GrantedAuthorityImpl is deprecated in Spring security version 3.1.0

Replace it with SimpleGrantedAuthority as recommended in the API
documentation.

Change-Id: I98d3e719ab78fed321c645d6a5f8d9038f91c703
Fix: References to generic type Set<E> should be parameterized

Change-Id: I19c0467f899b4e2ecd5d9984c794edb1273399e1
Fix: The expression of type List needs unchecked conversion

There are several instances of lists being used without type
check, causing the compiler warning:

    Type safety: The expression of type List needs unchecked
    conversion to conform to List<Type>

Add a new utility class with a method that will enforce that
a list contains objects of the specified type, and use it to
prevent the compilation warning.

Change-Id: I8c33284fc2a62d529bdae0e2ce07474cdea34fd8