Please build libewf for EL6 and EPEL7.

This is required for building sleuthkit in those branches.

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[moezroy@localhost libewf]$ fedpkg build
Could not execute build: Package libewf-20140608-1.el7 has already been built
Note: You can skip this check with --skip-nvr-check. See help for more info.
[moezroy@localhost libewf]$ fedpkg update
Creating a new update for  libewf-20140608-1.el7 
Password for moezroy: 
Creating a new update for  libewf-20140608-1.el7 
moezroy does not have commit access to libewf
[moezroy@localhost libewf]$ 

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