added raw api methods:
  callGetAPI
  callPostAPI
  executeBatch
fixed wrong styles (white-space, tab)
added raw api methods:
  callDeleteAPI
Merge branch 'release/2.0.5' into develop
Merge pull request #65 from takke/master

added raw api methods: …
  callGetAPI
  callPostAPI
  executeBatch
fixed wrong styles (white-space, tab)
added raw api methods: …
  callDeleteAPI
FFJ-15 FFJ-16 Introduce Batch Requests and Raw API call
FFJ-20 use keepAlive (android 2.2 or later)
FFJ-15 FFJ-16 equals/hashCode, toString, serializable
prepare release 2.1.0
Merge branch 'release/2.1.0'
[maven-release-plugin] prepare release 2.1.0