reduce memory requirements to run tests
fixed bug in reporting of % written
change slice-reads-by-coverage.py to replace N with A instead of G
updated ChangeLog
fix pep8 violation in trim-low-abund.py
Merge pull request #706 from ged-lab/update/streaming

Two minor bug fixes to sandbox scripts
Merge pull request #701 from ged-lab/fix/tests-nohighmem

reduce memory requirements to run tests
Add Python/C++ boilerplate for HyperLogLog counter.

 - Add a new sandbox script for initial testing.
 - Update Makefiles.
Basic implementation ready, still debugging.

 - Change signature: pass acceptable error rate to create HLL counter.
 - Implement HLL counter based on svpcom/hyperloglog Python version.
 - Use khmer::_hash function from ktable.
 - In hll_count use a collections.Counter to check results.
astyle -A10
Working with SHA-1
Using khmer hash function
hll_count fix
Add MurmurHash3, SHA-1 to kmer_hash
Bias estimate correction
Add consume_string, use XOR instead of max for revcomp
Better constants initialization
Move smhasher functions to third-party
astyle
Remove hll_count.py script from sandbox