rsyncdirect: Added support of custom arguments
manpage: Added information about "--" config line
Enabled "./configure" caching
Fixed segfaults in threaded mode
.travis.sh: Reenabled building tests
Fixed travis building tests
Added support of "direct" mode
Merge branch 'rsyncdirectargs' of https://github.com/xaionaro/clsync into rsyncdirectargs
Fixed "%RSYNC-ARGS%"
Updated .gitignore
Removed "-----" and "------" from syntax()
Removed "--(null)" from syntax()
Removed irrelevant information from the manpage
Fixed a type in the manpage
Fixed more a sentence in the manpage

"If sync-handler-arguments is not set then default setting is used."
->
"If sync-handler-arguments are not set then the default setting is used (see below)."
Added information about "direct" mode into the manpage
Disabled access() checking of sync-handler
Merge branch 'rsyncdirectargs'