Debugger: Prepare assigning of values in LLDB interface

Change-Id: I722e78c352066ddd05e96199fd8ead088e3e9f59
Reviewed-by: hjk <hjk121@nokiamail.com>
Debugger: Simplify LLDB startup sequence

Change-Id: I17121fcce1c063a6a0af82ebac080f843d2d157f
Reviewed-by: hjk <hjk121@nokiamail.com>
Doc: do not link to external pages over https

Replaced "https" with "http" (where redirecting works)
as a workaround for a bug that causes Qt Creator to crash
when trying to open external links using https.

Task-number: QTCREATORBUG-9397
Change-Id: If331eaffd2296a79f6e6f1ee7becd725d2aadb1d
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>