Samplesheets now handle dual indexes
Merge pull request #172 from wtsi-npg/master

pull from master (release 77.2) to devel
Use npg::api::util to read sensor data. Use NPG_WEBSERVICE_CACHE_DIR for testing.
sensor.pm now uses npg::api::util
web app and database adjustments for HiSeqX; callbacks for uptime graphs removed; removed the uptimes table from the textual listing of intruments page
MANIFEST update
npg::api::util is deprecated - do not use it
HiSeqX-related template changes
update for db update script
Merge branch 'devel' of github.com:mgcam/npg_tracking into devel
Merge remote-tracking branch 'js10-remote/sensors' into devel

Conflicts:
	Changes
merged instrument checker scripts for all existing sequencing instrument types; removed instrument checker scripts for invividual seq instrument types; all instrument checkers to use local libraries if available; proper sort of instrument formats
Merge remote-tracking branch 'mg8-remote/devel' into devel

Conflicts:
	Changes
refine description of sensors.pm change
Use immutable object style

which allows object creator to set attribute requiring the dual index
split, and have this attribute specify the size of the dual indexes
Merge pull request #3 from dkj/dual_index

Dual index - Use immutable object style
pulled changes from remote jenniferliddle/dual_index; resolved conflicts, fixed failing test
Merge pull request #176 from wtsi-npg/devel

pull request from wtsi devel to master to create release 77.3