welcome GenomeTools to 2013!
improve installation documentation
clarify 'make cleanup' in INSTALL file
extend GtRankedList tests
fix memory access problem in rbtree code
use GT_LAST_PATH for lastdb calls
check for pkg-config
fix problem with out-of-view multi-feature represetatives

This fixes http://genometools.org/pipermail/gt-users/2012-November/000586.html
Added logger to plain_sain.
Output time only in connection with verbose option.

If verbose option is not used, then one final time is shown.
Added more tools to evalsfxrun.sh
Renaming of Macros and cleanup of code.
Reformat evalxdropfunction.
Renamed typos according to Genometools-Standards.
Replace macro computation of GCD by function calls.
Polished the xdrop code.
Polished querymatch code.
Extended Querymatch by score.
Added option -extend to repfind.
Call left+right xdropextension and combine them.