Added aspell component from ec-userland with some customization to make it build. Please note, just for now to build aspell with GCC >= 4.6 you should modify your system headers.
Modified aspell component to work with UTF-8 in curses. It needs fixes from https://www.illumos.org/issues/3787 and https://www.illumos.org/issues/3801 . (commit: da0cba1)