add datasheet for SMD PTC fuse
rename device SIBA_194600 to PTC-FUSE and add metadata

this is a preparation for adding more packages to this new generic PTC
fuse device
add datasheets and adapt device description
add LP60-050 package for PTC fuse
Merge pull request #47 from LeSpocky/ptc-fuse

part PTC-FUSE and related packages/symbols
Corrected the WS2812 PIN definition.
Merge pull request #48 from penguineer/ws2812

Corrected the WS2812 PIN definition.
Adapted to corrected WS2812 pin layout (moved one GND connection)
Schönheitskorrekturen
Copied NE555 from st-microelectronics.lbr for further changes.
NE555: Named existing variant "DIL"
NE555: Added SO08 variant.
NE555: Descriptions and Reichelt part numbers
1N4841: Variant from diode.lbr with SMD package SOD-80
added first flag to dil-08 pin 1
changed ne555 discharge pin to open collector
Merge branch 'tux-ne555'
Merge branch 'tux-1n4148'

Conflicts:
	lib/n39.lbr
ws2812: moved things around to center package
move board dimension to origin, update ws2812 package, reroute

The lower left corner of the board dimension was not coincident with the
coordinates 0,0 which lead to difficulties moving an exported dxf to the
right place for drilling/milling, so I moved everything an half inch to
the right. Then I used the new centered ws2812 package and routed the
wires again. The drills are still in place, but next time the board is
slightly different.