Maintenance revision 1.1.0.2

This revision contains a number of fixes, plus some little improvements in important procedures that were ready for release, so we felt like including them.

• Make stepper motors' idle hold time-out configurable with M84
• Improvements in homing procedure
• Fix temperature readings
• Fix parameter parsing inside M85
• Fix parsing of line number words (N's can now be used inside M790...)

Where's 1.1.0.1?

If you might be wondering where has 1.1.0.1 gone: due to a troubled release cycle (when isn't it so?), it was actually labelled 1.1.0-1 and constituted the second and final release candidate for 1.1.0 version. This numbering scheme was necessary to maintain a clear succession of version numbers for the sake of firmware updates.