* Made most Handlers derived from CHandlerBase and moved service API there.
* Declared existing Entity APIs.
* Added basic script context caching
* Started Lua script module
* Started Lua spell effect API
* Started script state persistence
* Started battle info callback binding
* CommitPackage removed
* Extracted spells::Caster to own header; Expanded Spell API.
* implemented !!MC:S, !!FU:E, !!FU:P, !!MA, !!VR:H, !!VR:C
* !!BU:C, !!BU:E, !!BU:G, !!BU:M implemented
* Allow use of "MC:S@varName@" to declare normal variable (technically v-variable with string key)
* Re-enabled VERM macros.
* !?GM0 added
* !?TM implemented
* Added !!MF:N
* Started !?OB, !!BM, !!HE, !!OW, !!UN
* Added basic support of w-variables
* Added support for ERM indirect variables
* Made !?FU regular trigger
* !!re (ERA loop receiver) implemented
* Fixed ERM receivers with zero args.
Usual install via brew takes 800-900 seconds, but cache doesn't help much.
Sadly cache not shared between branches and it's initial upload takes too long.
* Remove Clang 3.5 since compilation with 3.4 and 3.6 is enough.
* Building for Coverity Scan with 3 threads and without launcher since it's timeout otherwise.
* Add Slack notifications to #notifications channel.
* Direct email notifications to noreply at vcmi.eu. We can later add redirection to those who want them.
Tests we have now depend on Boost 1.59+ features not available in 14.04.
There is no alive PPA for Boost / Trusty I can find.
Xenial support might arrive to Travis or we'll rework config.
Even with Clang, Ninja and debug set build takes extremely long and end just minute before timeout.
We should investigate using Gold linker for Linux builds on Travis and check what else can be done to speed up building process.
Tests are disabled for MXE since they fail to build. Problem is lack of proper main, but fix might break them on other platforms.
Since we don't have many automated tests anyway better to disable it for now when it's built using MXE.
