Add ZIM format support (issue #267). Now turned on by default for Windows only. Under Linux/MacOS use "qmake "CONFIG+=zim_support"" (liblzma-dev package required. Or take xz 5.0.5 sources from http://tukaani.org/xz/ and compile it).
Zim: Add liblzma.a and it headers for MacOS, turn on Zim support under MacOS by default.
Zim: Split files support
Merge branch 'zim-support'
Some more exception handling
Possibility to log GD console messages into file "gd_log.txt" in GD config directory. Activated by "--log-to-file" key in command line.
Don't treat folders with recognized dictionary extensions as dictionaries

For example, it makes no sense trying to initialize Test.dsl folder
as DSL dictionary.
Merge branch '1.5-dev'
Update suggestion list after group content editing (issue #406)
Linux-specific: Handle Qt::Meta key in hotkeys (issue #404)
Some more unhandled exceptions
Merge branch '1.5-dev'
Merge branch '1.5-dev'
Win-specific: Avoid wrong mouse wheel handling in QWebView if system preferences is set to "scroll by page" (issue #385)
Win-specific: Adjust project file for 64-bit MinGW build
Merge branch '1.5-dev'
Win-specific: Adjust NSIS installation script for GoldenDict version 1.5
Win-specific: Fix typo in NSIS script
DSL: Fix formatting in multiline tags
DSL: Some more formatting fixes