pncconf -bring back PID spindle option

Signed-off-by: Chris Morley <chrisinnanaimo@hotmail.com>
pncconf -revamp spindle page layout -improve near settings

Hopefully near settings are more obvious.
remove following error settings

Signed-off-by: Chris Morley <chrisinnanaimo@hotmail.com>
gladevcp -add search and replace to hal_sourceview

This adds a basic search and replace with replace-all and ignore-case.
it is available through python calls - not exposed directly on widget

Signed-off-by: Chris Morley <chrisinnanaimo@hotmail.com>
gscreen -add commands for search and replace of gcode.

add ability to utilize of hal_sourceview's search and replace.
add an example to gscreen's industrial skin

Signed-off-by: Chris Morley <chrisinnanaimo@hotmail.com>
pncconf -change default spindle scale, fix near option sensitivity

scale of max 2000 rpm is a better default then 10
near options were not initilized properly

Signed-off-by: Chris Morley <chrisinnanaimo@hotmail.com>
pncconf -adjust layout of spindle page

move buttons, fix spellng mistakes

Signed-off-by: Chris Morley <chrisinnanaimo@hotmail.com>