Merge pull request #186 from wtsi-npg/master

pull from wtsi master to devel
Various HiSeqX changes. Check_tiles() now looks for lane sub-directories in the BaseCalls directory if none
found in the Intensities directory. Switched run_completed() and mirroring_complete() to check for existence
of a RTAComplete.txt file rather that a ImageAnalysis_Netcopy_complete_Read#.txt file. Updated tests.
Various HiSeqX changes
Check_tiles() now looks for lane sub-directories in the BaseCalls directory if none found in the Intensities directory.
Switched run_completed() and mirroring_complete() to check for existence of a RTAComplete.txt file rather that a ImageAnalysis_Netcopy_complete_Read#.txt file.
Updated tests.
Merge pull request #187 from srl147/devel

HiSeqX changes
Changes update; code formatting
Merge pull request #188 from wtsi-npg/devel

pull request from wtsi devel to master to create release 77.7