fix potential issue in .kicad_pcb file creation, in some places where a %g or %.16g format was used:
al least under Mingw/gcc4.7.2, the floating number was written using scientific notation, not accepted by the S-expr reader.
File "rules" has instructional text as comments near top.
2) Convert all text files in repo to LF line ending form.
Any checkout done with "rules" in play will convert the working
tree to native line ending, while keeping repo as LF line ending.
* If this param is set to 0, the previous behavior is used.
* Else the solder mask is plotted as polygon, with shapes near than this min width value are merged.
Pcbnew in nanometer version: fix a serious rounding issue due to the fact dialogs were using 4 digits for mantissa.
* This is not enough for nanometer coordinates ( 8 are needed to display a value in inches),
* so sometimes after closing a dialog, some coordinates were modified, although no new value was entered.
Minor other bug fixed.
jean-pierre charras
Dick Hollenbeck