added makefile for whom who want to build without codelite and can't create makefile on it own

	event_system:
                draft implementation of	repeated events	(we still have none defined by protcol)
                more appropriate names for some	enums and structs
        messaging:
                a bit of refactoring in	server_session (cut message handler to separate functions for each message type)
                more appropriate names for some functions
        curl_downloader:
                updating downloaded size variable during download process (thread safety required)

	core:
		added check for config directory on config save (crash fix)
		added "--version" option

	all projects: corected cflafs/cxxflags
	modules:
		metadata_flat:
			fixed crash on non-existing setting check
client:
	enable ui only after events subscription to avid hypotetically not handled events

	flat_metadata_module: added missed cflags for relase build
	curl_downloader_module: added missed cflags for relase build

	added additional library search path for debian

added few comments

	curl_downloader:
		correct use of default download_path

	curl_downloader_module:
		implemented metadata cleanup on download delete

	curl_downloader_module:
		basic data transfer handling (now able to save file, still need a lot of validation)
		some tracing code

this may be called first working prototype with vary basic functionality implemented.

currently udm have working server, working qt client and able to download url via curl module (most of additional events like
download progress currently not
implemented, code need lots of sanity checks and exception handling)