First attempt at an improved API for getting sequence ranges
Merge branch 'master' of https://github.com/genometools/genometools
Merge pull request #16 from standage/master

First attempt at an improved API for getting sequence ranges
implement gt_feature_index_get_orig_range_for_seqid()
Merge pull request #18 from satta/master

add `gt_feature_index_get_orig_range_for_seqid()`
fix floating point problems in hmm class

subtracting 2 (nearly) equal floats can result in huge errors, just
assign 0.0 to differences of "equal" floats.

fix issue #14
float compare x < y => x-y < -DBL_EPSILON