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

The rewriter-created sscanf and snprintf routines did not support map
structs with arrays or pointer types in them. Add such support.
Signed-off-by: Brenden Blanco <bblanco@plumgrid.com>

biosnoop.py: use one map instead of two

typo trawl

Add bpf_module.h to CMakeLists.txt

Add in tool bitesize

Simple HTTP Filter Example

update local repo

documentation typos

Fix segfault in ~BPFModule on syntax error

~BPFModule was segfaulting because tables_ was an empty pointer. The
pointer is valid only for valid compilations. Add a test as well.
Signed-off-by: Brenden Blanco <bblanco@plumgrid.com>

contributing scripts guide

The C++ API should also be exported, in addition to the C API.
Because type safety is nice.