fixed a bug in wkapplication where duplicated node id will be passed as input for the candidates to construct heartbeat groups
Merge branch 'develop' of github.com:wukong-m2m/NanoKong into develop
Exclude nanovmtool from git
Added a new method for NanoKong to load heartbeat period
jinja2 template for application.java now will generate variables for heartbeat periods as well
Fixed mapping to give correct period from reaction time