Added script to sample sequence data in encseq format.
coding style
remove gt_prefix for local names
`gt sequniq`: Do not filter out "palindromic" seqs

Before that a sequence which equals the reverse complement of itself was
filtered out.

Closes #438
Merge pull request #443 from gordon/sequniq

`gt sequniq`: Do not filter out "palindromic" seqs
default 64bit compilation, touches genometools/genometools#442
correctly handle platform error in rdj assembly
add 32bit=yes to INSTALL instructions,
error message for contradictory parameters,
touches genometools/genometools#444
Merge pull request #441 from ggonnella/readjoiner_32bit_error

correctly handle platform error in rdj assembly
Merge pull request #444 from joergi-w/hiwi

default 64bit compilation
Added script to sample sequence data in encseq format.
test 32bit on travis
adjust to new defaults
Merge pull request #446 from Garonenur/travis_multilib

Travis multilib
Compile with cairo. remove x bit from Makefile
fix phase offset handling during sequence extraction

Closes #447.
add additional test case for phase offset
Corrected typo on web-site sources.
Merge branch 'sk' of https://github.com/stefan-kurtz/genometools into sk
Merge pull request #448 from satta/phases

fix phase offsets for sequence extraction