much faster coverage calculation
Merge pull request #48 from cboursnell/master

new chimera detection algorithm
undo binary breakages
fix coverage calculation using sorted bam and use more expanded paths
remove express - no longer used
move dependency checking and installation to --install-deps option
connect contig metrics, remove unused parts of Assembly API
remove unused linguistic complexity from ContigMetrics (now handled by Contig)
log before slow loading actions, actually merge contig metrics
round all floats to 2dp in cli
connect up chimera calculation
wider cmdline report
simplify assembly basic stats by removing some old threading code
don't recreate bowtie2 index if it already exists
tentatively add logging
include singleton, define module method properly
expose logger in cli
add yell dependency, fix failed attempt to include module in class
use symbols for loglevel
set loglevel with Yell::Level