Fix README, some spelling errors, remove contractions,
exclamation marks, correct some plural forms, join split messages.
Add QCoreApplication::translate to non-Q_OBJECT-classes.
Fix some lupdate warnings about discarding meta-data (//:).

 * Add a DeployConfiguration class to hold settings related
   to deployment.
 * Add BuildStepsList to hold a list of buildsteps
 * Update BuildConfiguration to use BuildStepLists instead of
   manageing lists of buildsteps itself.
 * Update BuildManager to use BuildStepLists in its interfaces
 * Fix fallout introduced by API changes
 * Update .user file to new way of storing settings

Task-number: QTCREATORBUG-1427
Task-number: QTCREATORBUG-1428
Task-number: QTCREATORBUG-1811
Task-number: QTCREATORBUG-1930

 * Add "Deploy" to BuildSteps::Type
 * Update UIs to handle deploy steps
 * Turn existing package creation steps from build type to deploy type
 * Move packaging steps into deploy steps when loading projects

Reviewed-by: dt

 * Move and rename the enum
 * Add Q_ENUMS macro

Reviewed-by: dt

Reviewed-by: kh1

Reviewed-by: kh1

(No actual functionality yet.)

Reviewed-by: kh1