2.5.1

Mostly bug fixes and driver script changes:

• Fixed log message error causing premature assembly safety mode abort
• Relaxing input BAM sort order checks to only require correctly sorted according to SAM file sort ordering
• Reducing memory usage by skipping directed evidence re-sorting when performing assembly
• Driver script tweaks:
  • #232 using "sambamba -n" for sorting for compatibility with older versions of sambamba
  • #233 Using 4g for entry points that do not use the --jvmheap option
  • Added bash version to driver script output
  • Using -Xms to test max memory usage up-front