Mod1+b/^Left and Mod1+f/^Right

Reported by Jochen Sprickerhof, thanks!

Applied patch with minor change (only initialize `i` for XINERAMA).

in this context XftColor is a too low-level type.

this makes it slightly easier to add colors to schemes.

WM_CLASS is a standard ICCCM property which is used to identify windows.
Window managers and compositors use it to allow per-application
configurable behavior.

This reverts commit 09d0a36e03.

Using strncmp with the length of the user input turns it into a prefix
match rather than an exact match as it's supposed to be.

thanks Markus Teich and David!

for example: dmenu -m '-9001'

This reverts commit a4053bc4e4.

My bad, was working on the wrong branch and accidently pushed it...
*facepalm*

When the input text fully matches a single item, do not draw the item
and highlight the input text to show that it matches an item in
opposition to regular input text not matching anything.

Without this, we discard the item if it's longer than assigned width
instead of truncating it.

- extract drawitem function (code deduplication)
- fix bug where inputw was not correctly calculated from the widest item, but
  just from the one with the longest strlen() which is not the same. It's better
  now, but does not account for fallback fonts, since it would be too slow to
  calculate all the correct item widths on startup.
- minor code style fixes (indentation, useless line breaks)

This prevents accessing to a potentially out-of-bounds memory section.

Signed-off-by: Lucas Gabriel Vuotto <l.vuotto92@gmail.com>

Let the user configure word boundaries other than ' ', only works with
the portable character set.

This was always broken.

Reproduce:
	focus client on second monitor, spawn dmenu with -m 0.

Result:
	Old wrong behaviour: dmenu spawns on second monitor (focused client).
	Now: dmenu spawns on specified monitor (first).

... we don't allow passing text is NULL anymore either, for that behaviour
just use drw_rect() (it is used in dwm).

don't do these checks on this level. However for resource drw_*_free
we will allow it.

... remove intermediary variables

this makes it slightly easier to add custom schemes aswell

just compare the size of the input string

look for exact matches comparing the user input against the item text

from Joshua Lloret on the ML:

"attached is a small patch to enable pasting from clipboard, as well as primary.

It seems like there was already code in there to allow this, but since there was never any case to match the upper case 'Y', that inline if would always evaluate to false."

Adds clarity. Typedefs for structs are definitely a discussion matter,
but there's no reason to hide a simple data-structure behind a
meaningless typedef.

- move main to bottom, usage above main.
- dont use variable names with function prototypes.
- space before if, for, while, etc: 'if(' -> 'if ('.

this makes the code-style more consistent

this makes the code-style more consistent aswell.

True, False are X11-specific, make sure to use c99 stdbool for
program-specific things.

... also remove left-over vim mode string in config.