Reorganize source directories in order to get better support for CMake eclipse generator.
(CMake eclipse generator does not support well when project dir is sub directory of project root dir)
Merge branch 'spike-cdt-optimize' into develop
Fix compile error due to source directory reorganization.
Merge branch 'hotfix-cdt-optimize' into develop
Modify GrepCommand class initialization parameters.
Organize code in tigrep.cc
Merge branch 'feature-main-func-refactor' into develop
make from,to parameters are omittable.
Merge pull request #2 from tri-star/develop

merge 0.2 codes.