issue install the plugin

[SinghNanak]

Fetching gem metadata from https://rubygems.org/.........
Resolving dependencies.......
Bundler could not find compatible versions for gem "deface":
  In snapshot (Gemfile.lock):
    deface (= 1.6.2)

  In Gemfile:
    deface (= 1.6.2)

    redmine_plugin_kit was resolved to 1.0.1, which depends on
      deface (= 1.8.1)

[alexandermeindl]

Hi @nanaksingh13,

looks like another plugin use different deface version. Same as in #102. Remove other plugin or change it to use same deface version as redmine_plugin_kit (which uses redmine_messenger)