add pull to refresh feature

only supports ReposFragment and StarredFragment now
resolve Refresh files list when pulling down #125
add pull to refresh to ActivitiesFragment
update pom.xml, README.md and project.properties
add pull to refresh feature

only supports ReposFragment and StarredFragment now
resolve Refresh files list when pulling down #125
add pull to refresh to ActivitiesFragment
update pom.xml, README.md and project.properties
show certificate warning details #142
Merge branch 'pullToRefresh' of github.com:Logan676/seadroid into pullToRefresh
add pull to refresh feature

only supports ReposFragment and StarredFragment now
resolve Refresh files list when pulling down #125
add pull to refresh to ActivitiesFragment
update pom.xml, README.md and project.properties
update pom.xml, README.md and project.properties
show certificate warning details #142
Merge branch 'pullToRefresh' of github.com:Logan676/seadroid into pullToRefresh

Conflicts:
	README.md
	project.properties
remove support-v4-PreferenceFragment dependency
update reference text
Merge pull request #153 from Logan676/pullToRefresh

add pull to refresh feature