main.cpp
* In function main, option gvc, initialized correctly histogram matrix since in the other way was causing a 'Segmentation Fault'.

scripts/script.linux.sh
* Changed exported system PATH.
main.cpp
* Change name of output file for the matrix of candidate occurrences.

scripts/eval_performance.m
* Fixed example.
scripts/eval_performance.m
* Fixed example input arguments.

scripts/script.linux.sh
* Uncommented commands for other pipeline stages.
Common/StringUtils.h
Common/StringUtils.cpp
* Extended functionality of function parseImgFilename to handle prefix concatenation.

main.cpp
* In function main, option for visualizing stored keypoints, added support for saving onto files the images overlayed with its keypoints.

scripts/display_queries.m
* Created octave script for visualizing images from a folder.