windows: removed duplicate termwidth definition
Changeset
dbf91976f900 caused this when the "from win32 import *" line
was replaced with explicit import statements: the wildcard import was
at the bottom of the file and so windows.termwidth was overwritten by
win32.termwidth as indented, but the new explicit import statements
were at the top and so win32.termwidth got lost.
With the switch to ctypes, win32 can always be imported and so the
fallback termwidth in windows is no longer needed.
httprepo: ensure Content-Type header exists when pushing data
Otherwise the wireprotocol just hangs while trying to send data. (And
nothing is received at the other side)
obsolete: obsstore.add now takes a list of markers.
This allow efficient IO and it greatly simplify the merging of markers.
obsolete: refactor writemarkers to only encode them
The function is now able to write the version header as necessary. The function
now yield bytes to be written to a stream.
This should ease later use of this function for wireprotocol based exchanged.
Prepare the public use of the writemarker by wireprotocol function.