extras; add stringTools.ec for TrimChars, TrimCharsCopy, TrimTestChars and TrimTestCharsCopy functions.
update .gitignore
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buildsystem,epj2make,ide; (#996-related) fixed remaining issues with .ec modules containing ampersands or projects in paths that have ampersands in it.
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ide: removed background image, made ToolBox and Properties Sheet invisible by default.
ide; FindInFilesDialog; added 2 checkboxes similar to 'include subdirectories' for in/ex-cluding 'obj' dirs and '.git' dirs.