tests: Consistent image naming
tests: Add RHEL 5.2 x86_64 image
tests: NFC shorten imported module name
tests: Add TestImage.guestfs_handle

Open a libguestfs handle on a TestImage, independent of guestconv
redhat: Fix string conversion of Package
redhat: Improve error message about non-comparable Packages
redhat: Add LocalInstaller and YumInstaller
redhat: Add tests for {LocalInstaller|YumInstaller}.check_available()
tests: Write templated tdls to a temporary file
tests: Add conditional logging to test_helper
Enable networking on guestfs handle
redhat: check_available takes simple package list
tests: Fix path of uploaded systemid file
tests: Fix kernel version test
redhat: Add network to local installer fallback
redhat: Don't do a subarch check for kernels
tests: NFC formatting fix
redhat: Disable escaping of regexp strings
redhat: Add fallback mode for old yum without duplicate package support