[phase-21]Make it possible to migrate from previous version of glossary plugin
[phase-20]Make category index reorder
[phase-13]add glossary_term to activity
[phase-12]can be download attached file, new term with attachment
[phase-11]add attachable, but have permission problem
[phase-11]add index by rubi
[phase-7]add sidebar with some links, index link and search
[phase-6]add relation to project to term and category models
[phase-5]added category model and modified term model
[phase-1]generate model GlossaryTerm