updates and 3 tools: statsnoop, filelife, filetop

New tool: memleak

3 tools: fsslower, execsnoop, runqlat

Add bpf_get_prandom_u32 to helpers

Signed-off-by: Brenden Blanco <bblanco@plumgrid.com>

Fix python map.items() racing with bpf delete

The default python implementation of itervalues(), iteritems(), items(), and
values() do a sequence of iter().next followed by self[key], which may
produce a KeyError since a bpf program can delete them quickly. It
should be safe to suppress such errors, hiding them from the user.
Signed-off-by: Brenden Blanco <bblanco@plumgrid.com>

biotop

Support array and pointer types in scanf generated function