change assertEquals to assertEqual

According to http://docs.python.org/2/library/unittest.html
assertEquals is a deprecated alias of assertEqual.
change assert_ to assertTrue

According to http://docs.python.org/2/library/unittest.html
assert_ is a deprecated alias of assertTrue.
changed ui for batch profile change to jquery

to provide select box with existent profiles to reduce typos while
changing profiles by typing the profile name manually
sync remote files to tftpdir

before remote kernel and initrd were not synced to tftp dir (see removed
comment) which lead to unusable pxe configs because in pxe config a not
synced kernel/initrd was referenced (e.g.
append initrd=/images/sles-11-sp3-x86_64_test/initrd.gz)
Merge pull request #974 from berendt/replace_assertEquals_with_assertEqual

change assertEquals to assertEqual
Merge pull request #975 from berendt/replace_assert__with_assertTrue

change assert_ to assertTrue
Merge pull request #976 from mvdlinde/master

changed ui for batch profile change to jquery
Merge pull request #977 from mvdlinde/tftp_sync_remote

sync remote files to tftpdir