Pending breakpoints support

[Vladimir Prus]

Hi!

Current KDevelop's debugger has support for breakpoints in shared libraries. 
Say, if you try setting breakpoing in a library that's no loaded yet, 
KDevelop will mark the breakpoint as "pending" and will retry setting that 
breakpoint after each shared library is loaded.

All fine, but starting with version 6.1, gdb supports this itself. One just 
needs to emit

   set breakpoint pending on

(in KDevelop, on terminal gdb will just ask).

Anybody could comment if it's better to remove the "pending breakpoints" 
support in KDevelop? That complicates the code a bit.

- Volodya