disabled CPU bucketing as it currently underperforms on many cores

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18835263]
fixed argument description

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18865798]
added acquire/release barriers

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18865926]
- added exception handling
- fixed logging

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18866178]
fixed default batch size

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18866183]
fixed wrong usage of the released host data structures

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18866239]
added local copies of the host batches, which were previously used after being released

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18866276]
reuse local copies

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18866338]
turn on seed randomization by default

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18866810]
implemented missing randomized search during multiple-hit selection

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18867414]
added support for the --no-rand option

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18867554]
new version number

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18867886]
added initial implementation for Hamming distance alignment - currently slower than the others, might benefit from
a SW-like reimplementation

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18870677]
replaced the implementation with an adaptation of the register-blocked SW

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18872392]
added utility functions

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18872568]
added optional ungapped alignment of the opposite mates

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18872661]
io: Initialize valid flag in SequenceDataFile constructor

The valid flag was being checked but not initialized,
leading to the file never reaching the OK state.

Initialize the valid flag in the SequenceDataFile_FASTA_gz
constructor.

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18878467]
nvMicroAssembly: local de Bruijn graph construction

Initial commit of the parallel local assembly algorithm
based on the HaplotypeCaller in GATK. Implements local
de Bruijn graph construction.

Includes basic implementation of the graph traversal (untested).

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18878468]
htslib: Fix include directory path for zlib

Fixes a build break in htslib

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18878505]
nvMicroAssembly: Fix zlib include path

Fixes a build break

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18878536]