Added support for deferred files

Cli: bug fix with colored output

Libs: updated Nette from 2.0.3 to 2.0.18

Examples: updated

Examples: changed year in layouts

Examples: added multi-layouts example

Generator: little performance optimization

Purging of output directory is optional (disabled by default)

Readme: missing <hr>

Added new parameter '--onedir'

Disables creating of subdirectories ('2013-12-12_13-14-15',...) in
output directory.