Fix issue #6 - Match -e of grep for regexp
Fix issue #3: option to follow symlinks
Fix issue #7: search a single file
Fix rest of issue #6: regexp in subsearch
Fix warning due to improper declaration of regex()
Fix warning due to assignment discarding const qualifier
Fix issue #2: Ability to exclude dirs
Fix issue #8: incorrect number of hist in subsearch
If regexp in subsearch is invalid, return NULL
Fix issue #4: issue with last line when filling first screen
Fix broken display in subsearch where empty files appear
Free list of excludes on quit
Changed the way parameters to mainsearch are held and used
TOSQUASH: Updated usage()
Fix a whole bunch of warnings
Fix issue #1: provide several file extensions
Fix issue #9: trailing '/' in exclude causes failure of option
Fix all -Wall -Wextra warnings !
Reorganize code to be more readable
Split init from main