add pip (some python installer)
rename pip to python-pip
qt4: fix build errors with gcc 4.7

additionally mute some warnings that cluttered the build log,
and disable the strict aliasing optimisation which could invoke UB,
judging from the emitted warnings.
qt4: make it actually work

there are several issues fixed
1) qt's configure cant deal with an empty prefix, so $prefix/ must
   be used.
2) using a non /usr prefix leads to a messed up directory structure
   so we need to pass all dirs explicitly
3) in order to work correctly with musl's iconv (which doesnt process
   BOM), a patch is needed that disables the BOM and uses UTF-16LE
   /BE explicitly, since UTF-16 defaults to UTF-16BE.
   this messes up any file accesses (even directory separator is
   misdetect, leading to stuff like:
   mkdir("/home/user\342\274\200/home/user", 0777) = -1 ENOENT )
   additionally, all text in labels, menus, etc was using squares
   instead of real text.
4) in order to make python-qt4 work, a patch is needed to make
   qmake -query print the default values.
add python-sip
add python-qt4
musl: bump to 0.9.11
bump gettext-tiny to 0.0.3