Merge pull request #98 from mgcam/devel

switch live npg api base URL to a different host in order to separate human- and api-driven requests
patch for samplesheet parser
removed depricated methods from npg::api::run_lane
simplified logic for saving to cache in npg::api::request and removed unused save2cache methods
staging area indexes defined in single place
Merge pull request #100 from dkj/devel

staging area indexes defined in single place
Reflect the lates pulled changes in Changes
version of npg::api::request module updated to help tracking requests; Changes update
Merge remote branch 'wtsi/devel' into devel