* fix healing ability of some characters to some extent
* using SerialName to replace replaceAll in avatar ability files reading
* add class HealAbilityManager
* move codes in onAbilityInvoke of class AbilityManager to class HealAbilityManager
* feature(2.7 version): support 2.7 version & upload new protos
1. Support GC in GI 2.7.0;
2. Upload new protos;
3. Fix some bugs cuz by new protos.
BREAKING CHANGE: all
* fix(database helper): fix player uid issues
* fix(ability embryo): uint32 to fixed32
* fix(proto): map mark
rename MAP_MARK_FROM_TYPE_NOE to MAP_MARK_FROM_TYPE_NONE
* fix(game version): change game version to 2.7.0
* perf(proto): remove unused protos
1. Remove unused protos;
2. Temporarily commented out some of the proto fields.
* fix(proto): uint32 to fixed32
