[doc] update NEWS
[fontloader] sync with Context as of 2014-04-05
[db] update index structure documentation
[fontloader] sync with Context as of 2014-04-16
[misc] make valgrind suppressions more strict
[misc] add valgrind suppression covering kpse_set_program_name
Merge pull request #213 from phi-gamma/texlive2014

syncs and some non-functionality related changes